Dr. T. Joshua Pfefer
SPIE Involvement:
Conference Co-Chair | Conference Program Committee | Author | Editor | Special Event Speaker
Publications (108)

SPIE Journal Paper | 7 January 2025 Open Access
Anant Bhusal, Masoud Farahmand, Md Sadique Hasan, Sandhya Vasudevan, William C. Vogt, Bryan Ibarra, Sandy Weininger, Christopher G. Scully, X. Frank Zhang, Yu Chen, T. Joshua Pfefer
JBO, Vol. 29, Issue S3, S33314, (January 2025) https://doi.org/10.1117/12.10.1117/1.JBO.29.S3.S33314
KEYWORDS: Polydimethylsiloxane, Oximeters, Tissues, Silicon, Compliance, Biological samples, Elastic modulus, Materials properties, Optical properties, Blood

SPIE Journal Paper | 18 July 2024 Open Access
JBO, Vol. 30, Issue S1, S13703, (July 2024) https://doi.org/10.1117/12.10.1117/1.JBO.30.S1.S13703
KEYWORDS: Signal to noise ratio, Imaging systems, Fluorescence, Quality control, Fluorescence imaging, Molecular imaging, Cameras, Tunable filters, Standards development, Signal intensity

Proceedings Article | 13 March 2024 Presentation
Anant Bhusal, Sandhya Vasudevan, Md Sadique Hasan, Masoud Farahmand, William Vogt, Sandy Weininger, Yu Chen, Joshua Pfefer
Proceedings Volume PC12833, PC128330A (2024) https://doi.org/10.1117/12.3004468
KEYWORDS: Oximetry, Tissues, Polydimethylsiloxane, Standards development, Point-of-care devices, Microfluidics, Silicon, Quality control, Polymers, Oximeters

Proceedings Article | 13 March 2024 Presentation
Zixin Wang, Keith Wear, Joshua Pfefer, Jesse Jokerst, William Vogt
Proceedings Volume PC12842, PC1284219 (2024) https://doi.org/10.1117/12.3001708
KEYWORDS: Dyes, Oximetry, Blood, Photoacoustic spectroscopy, Accuracy assessment, Biological samples, Vascular imaging, Tissues, Standards development, Safety

Proceedings Article | 13 March 2024 Presentation
Proceedings Volume PC12833, PC1283307 (2024) https://doi.org/10.1117/12.3004464
KEYWORDS: Skin, Calibration, Turbidity, Tissue optics, Temperature metrology, Spectrophotometry, Reflectivity, Oximeters, Chromophores, Anatomy

Proceedings Article | 13 March 2024 Presentation + Paper
Mousa Moradi, Sandhya Vasudevan, Anant Bhusal, Sandy Weininger, Yu Chen, Joshua Pfefer
Proceedings Volume 12833, 1283302 (2024) https://doi.org/10.1117/12.3004189
KEYWORDS: Oximetry, Skin, Monte Carlo methods, Transmittance, Modeling, Oximeters, Photons, Calibration, Scattering, Modulation

Proceedings Article | 17 March 2023 Presentation
Proceedings Volume PC12359, PC1235908 (2023) https://doi.org/10.1117/12.2652255
KEYWORDS: Luminescence, Safety, Visualization, Tissues, Standards development, Skin, Molecules, In vitro testing

SPIE Journal Paper | 15 March 2023 Open Access
David Burgos, Bennett Blumenkopf, Ali Afshari, Kirstie Snodderly, T. Joshua Pfefer
NPh, Vol. 10, Issue 01, 015007, (March 2023) https://doi.org/10.1117/12.10.1117/1.NPh.10.1.015007
KEYWORDS: Aneurysms, Arteries, Printing, Fluorescence imaging, Biomimetics, 3D modeling, Nervous system, Fluorescence, 3D printing, Optical properties

Proceedings Article | 6 March 2023 Presentation
Proceedings Volume PC12370, PC123700D (2023) https://doi.org/10.1117/12.2649154
KEYWORDS: Skin, Oximetry, Standards development, Colorimetry, Tissues, Reflectivity, Oximeters, Optical diagnostics, Chromophores

Proceedings Article | 6 March 2023 Presentation
Proceedings Volume PC12370, PC123700I (2023) https://doi.org/10.1117/12.2657568
KEYWORDS: Oximetry, Tissues, Tissue optics, Blood, 3D printing, Skin, Silicon, Scattering, Optics manufacturing, Optical fabrication

Proceedings Article | 6 March 2023 Presentation
Proceedings Volume PC12370, PC123700F (2023) https://doi.org/10.1117/12.2652630
KEYWORDS: Skin, Oximetry, Photoacoustic imaging, Blood, Tissue optics, Sodium, Oximeters, Oncology, New and emerging technologies, Dermatology

SPIE Journal Paper | 20 July 2022 Open Access
JBO, Vol. 27, Issue 07, 079801, (July 2022) https://doi.org/10.1117/12.10.1117/1.JBO.27.7.079801
KEYWORDS: Raman spectroscopy, Biomedical optics, Silver

SPIE Journal Paper | 27 June 2022 Open Access
JBO, Vol. 27, Issue 07, 074701, (June 2022) https://doi.org/10.1117/12.10.1117/1.JBO.27.7.074701
KEYWORDS: Standards development, Image quality standards, Biomedical optics, Tissues, Tissue optics, Luminescence, Imaging spectroscopy, Diffuse optical imaging, Silicon, Raman spectroscopy

Proceedings Article | 7 March 2022 Presentation
William Vogt, Joshua Pfefer, Keith Wear, Brian Garra
Proceedings Volume PC11960, PC119601Z (2022) https://doi.org/10.1117/12.2610013
KEYWORDS: Skin, Photoacoustic imaging, Absorption, Imaging systems, Image quality, Tissue optics, Signal attenuation, Photoacoustic spectroscopy

Proceedings Article | 7 March 2022 Presentation
Proceedings Volume PC11951, PC1195107 (2022) https://doi.org/10.1117/12.2609971
KEYWORDS: Near infrared spectroscopy, Performance modeling, Monte Carlo methods, Signal detection, Sensors, Reflectivity, Oximeters, Photons, Diffuse reflectance spectroscopy, Computer simulations

Proceedings Article | 7 March 2022 Presentation
Proceedings Volume PC11951, PC1195108 (2022) https://doi.org/10.1117/12.2611780
KEYWORDS: 3D modeling, Photoacoustic imaging, Computational modeling, 3D acquisition, Monte Carlo methods, Acoustics, Performance modeling, Image quality, Computer simulations, Tissue optics

SPIE Journal Paper | 28 October 2021 Open Access
JBO, Vol. 27, Issue 07, 074705, (October 2021) https://doi.org/10.1117/12.10.1117/1.JBO.27.7.074705
KEYWORDS: Raman spectroscopy, Calibration, Spectrometers, Standards development, Biomedical optics, Sensors, Particles, Spectrographs, Signal to noise ratio, Lamps

SPIE Journal Paper | 11 September 2021 Open Access
JBO, Vol. 26, Issue 09, 090901, (September 2021) https://doi.org/10.1117/12.10.1117/1.JBO.26.9.090901
KEYWORDS: Image quality standards, Image quality, Standards development, Medical imaging, Target detection, Ultrasonography, Photoacoustic spectroscopy, Magnetic resonance imaging, Visualization, Spatial resolution

Proceedings Article | 14 April 2021 Presentation
Proceedings Volume 11741, 1174106 (2021) https://doi.org/10.1117/12.2585240
KEYWORDS: Infrared radiation, Body temperature, Diagnostics, Temperature metrology, Synthetic aperture radar, Surgery, Medical research

Proceedings Article | 5 March 2021 Presentation
Proceedings Volume 11660, 116600A (2021) https://doi.org/10.1117/12.2579521
KEYWORDS: Oxygen, Luminescence, Safety, Molecules, Industrial chemicals, Visualization, Standards development, Optical imaging, Molecular imaging

Proceedings Article | 5 March 2021 Presentation + Paper
Proceedings Volume 11633, 1163309 (2021) https://doi.org/10.1117/12.2579357
KEYWORDS: Microscopes, Biomimetics, Angiography, Luminescence, Aneurysms, 3D modeling, Standards development, Printing, Imaging systems, 3D printing

Proceedings Article | 5 March 2021 Presentation
Proceedings Volume 11633, 1163308 (2021) https://doi.org/10.1117/12.2578782
KEYWORDS: Image quality, Tissue optics, Photoacoustic microscopy, Acoustics, Tissues, Vascular imaging, Ultrasonography, Standards development, Soft tissue optics

SPIE Journal Paper | 12 September 2020 Open Access
JBO, Vol. 25, Issue 09, 097002, (September 2020) https://doi.org/10.1117/12.10.1117/1.JBO.25.9.097002
KEYWORDS: Thermography, Temperature metrology, Diagnostics, Selenium, Mouth, Body temperature, Infrared radiation, Thermometry, Fourier transforms, Chromium

SPIE Journal Paper | 21 May 2020 Open Access
JBO, Vol. 25, Issue 05, 056003, (May 2020) https://doi.org/10.1117/12.10.1117/1.JBO.25.5.056003
KEYWORDS: Imaging systems, Luminescence, Manufacturing, Surgery, Image resolution, Indocyanine green, Tissues, Polyurethane, 3D imaging standards, Standards development

Proceedings Article | 10 March 2020 Presentation
Proceedings Volume 11222, 112220D (2020) https://doi.org/10.1117/12.2547056
KEYWORDS: Luminescence, Standards development, Imaging systems, Tissues, Manufacturing, 3D printing, Visualization, Fluorescent markers, Cancer, 3D imaging standards

Proceedings Article | 10 March 2020 Open Access Presentation
Proceedings Volume 11222, 112220S (2020) https://doi.org/10.1117/12.2546885
KEYWORDS: Luminescence, Surgery, Imaging systems, Image processing, Clinical trials, Image quality, Tissues

Proceedings Article | 9 March 2020 Presentation
Proceedings Volume 11231, 112310R (2020) https://doi.org/10.1117/12.2547515
KEYWORDS: Oximeters, Oximetry, Near infrared spectroscopy, Brain, Blood, Silicon, Optical properties, Custom fabrication, Optical fabrication, Additive manufacturing

SPIE Journal Paper | 8 November 2019 Open Access
Nima Akhlaghi, T. Joshua Pfefer, Keith Wear, Brian Garra, William Vogt
JBO, Vol. 24, Issue 12, 121910, (November 2019) https://doi.org/10.1117/12.10.1117/1.JBO.24.12.121910
KEYWORDS: Image quality, 3D modeling, Acoustics, Data modeling, Monte Carlo methods, Computer simulations, Tissue optics, Transducers, Photoacoustic spectroscopy, Photoacoustic imaging

SPIE Journal Paper | 22 June 2019 Open Access
JBO, Vol. 24, Issue 06, 065003, (June 2019) https://doi.org/10.1117/12.10.1117/1.JBO.24.6.065003
KEYWORDS: Nanorods, Gold, Particles, Laser damage threshold, Plasmonics, Pulsed laser operation, Nanoparticles, Acoustics, Absorption, Transmission electron microscopy

SPIE Journal Paper | 15 April 2019 Open Access
Jianting Wang, Jonathan Lin, Yu Chen, Cristin Welle, T. Joshua Pfefer
JBO, Vol. 24, Issue 04, 045001, (April 2019) https://doi.org/10.1117/12.10.1117/1.JBO.24.4.045001
KEYWORDS: Sensors, Near infrared spectroscopy, Tissues, Signal attenuation, Brain, Skull, Sensor performance, Traumatic brain injury, Standards development, Blood

Proceedings Article | 4 March 2019 Presentation
Ali Afshari, Rolf Saager, Xuewen Zhou, Pejhman Ghassemi, Jonathan Lin, Sandy Weininger, Jianting Wang, Anthony Durkin, Joshua Pfefer
Proceedings Volume 10870, 108700L (2019) https://doi.org/10.1117/12.2507049
KEYWORDS: Oximetry, Skin, Near infrared spectroscopy, Oximeters, Brain, Surgery, Oxygen, Tissues

Proceedings Article | 4 March 2019 Presentation
Proceedings Volume 10872, 108720X (2019) https://doi.org/10.1117/12.2514766
KEYWORDS: Thermography, Point-of-care devices, Diagnostics, Synthetic aperture radar, Temperature metrology, Reliability, Body temperature, Receivers, Infrared radiation

Proceedings Article | 4 March 2019 Presentation
Proceedings Volume 10870, 1087009 (2019) https://doi.org/10.1117/12.2513544
KEYWORDS: Infrared radiation, Black bodies, Body temperature, Minimum resolvable temperature difference, Data processing, Image acquisition, Standards development

Proceedings Article | 14 March 2018 Presentation
Proceedings Volume 10486, 1048607 (2018) https://doi.org/10.1117/12.2290438
KEYWORDS: Imaging systems, Biomimetics, Luminescence, 3D printing, Angiography, Printing, 3D image processing, Visualization, Pathology, Retinal scanning

Proceedings Article | 23 February 2018 Paper
Proceedings Volume 10509, 105090C (2018) https://doi.org/10.1117/12.2290114
KEYWORDS: Nanoparticles, Gold, Laser damage threshold, Pulsed laser operation, Particles, Acoustics, Scattering, Transmission electron microscopy, Laser scattering, Nd:YAG lasers

Proceedings Article | 19 February 2018 Paper
William Vogt, Xuewen Zhou, Rudy Andriani, Keith Wear, Brian Garra, Joshua Pfefer
Proceedings Volume 10494, 1049426 (2018) https://doi.org/10.1117/12.2290164
KEYWORDS: Photoacoustic imaging, Oximetry, Blood, Imaging systems, Blood circulation, Oxygen, Multispectral imaging

Proceedings Article | 19 February 2018 Presentation + Paper
Ali Afshari, Pejhman Ghassemi, Molly Halprin, Jonathan Lin, Sandy Weininger, Amir Gandjbakhche, Jianting Wang, Joshua Pfefer
Proceedings Volume 10486, 104860R (2018) https://doi.org/10.1117/12.2290771
KEYWORDS: Oximeters, Blood, Near infrared spectroscopy, Tissues, Optical properties, Brain, Biomedical optics

Proceedings Article | 13 February 2018 Presentation + Paper
Proceedings Volume 10485, 104850C (2018) https://doi.org/10.1117/12.2290870
KEYWORDS: Cell phones, Charge-coupled devices, Cameras, Oximetry, Absorbance, Near infrared, Blood, Hyperspectral imaging, Tissues

SPIE Journal Paper | 19 October 2017 Open Access
Congxian Jia, William Vogt, Keith Wear, T. Joshua Pfefer, Brian Garra
JBO, Vol. 22, Issue 10, 106011, (October 2017) https://doi.org/10.1117/12.10.1117/1.JBO.22.10.106011
KEYWORDS: Breast, Tissue optics, Tissues, Acoustics, Acquisition tracking and pointing, Ultrasonography, Optical properties, Signal attenuation, Transducers, Photoacoustic imaging

SPIE Journal Paper | 12 September 2017 Open Access
William Vogt, Congxian Jia, Keith Wear, Brian Garra, T. Joshua Pfefer
JBO, Vol. 22, Issue 09, 095002, (September 2017) https://doi.org/10.1117/12.10.1117/1.JBO.22.9.095002
KEYWORDS: Transducers, Image quality, Photoacoustic spectroscopy, Imaging systems, Ultrasonography, Image resolution, Liquids, Acoustics, Signal to noise ratio, Quality testing methods

Proceedings Article | 20 April 2017 Presentation
Jianting Wang, Stanley Huang, Yu Chen, Cristin Welle, T. Joshua Pfefer
Proceedings Volume 10056, 1005608 (2017) https://doi.org/10.1117/12.2254901
KEYWORDS: Tissues, Traumatic brain injury, Photopolymers, Titanium, Near infrared spectroscopy, Optical properties, Standards development, Biomedical optics, Point-of-care devices

Proceedings Article | 19 April 2017 Presentation
Proceedings Volume 10055, 100550Q (2017) https://doi.org/10.1117/12.2253878
KEYWORDS: Optical filters, Charge-coupled devices, Luminescence, Near infrared, Cell phones, Cameras, Biomedical optics, Spatial resolution, Image filtering, Imaging systems

Proceedings Article | 21 March 2017 Presentation + Paper
Proceedings Volume 10056, 100560J (2017) https://doi.org/10.1117/12.2255867
KEYWORDS: Imaging systems, Luminescence, Image quality standards, Indocyanine green, Standards development, Quantum dots, Spatial resolution, Image quality, Quality testing methods, Near infrared, Solids, Liquids, Epoxies

Proceedings Article | 16 March 2017 Paper
William Vogt, Congxian Jia, Keith Wear, Brian Garra, T. Joshua Pfefer
Proceedings Volume 10056, 100560C (2017) https://doi.org/10.1117/12.2254596
KEYWORDS: Tissue optics, Tissues, Image quality, Hybrid optics, Imaging systems, Acoustics, Biomedical optics, Photoacoustic tomography, Ultrasonography, Signal attenuation, Transducers, Photoacoustic imaging

Proceedings Article | 14 March 2017 Paper
Proceedings Volume 10056, 100560H (2017) https://doi.org/10.1117/12.2253882
KEYWORDS: Standards development, Thermography, Infrared radiation, Infrared cameras, Temperature metrology, Thermal imaging cameras, Cameras, Synthetic aperture radar, Body temperature, Spatial resolution, Minimum resolvable temperature difference, Spatial frequencies, Calibration, Black bodies, Infrared imaging, Nonuniformity corrections

Proceedings Article | 3 March 2017 Paper
William Vogt, Congxian Jia, Keith Wear, Brian Garra, T. Joshua Pfefer
Proceedings Volume 10064, 1006431 (2017) https://doi.org/10.1117/12.2253126
KEYWORDS: Image quality, Tissue optics, Transducers, Photoacoustic tomography, Computed tomography, Image quality standards, Standards development, Medical imaging modalities, Ultrasonography, Acoustics, Signal to noise ratio, Tissues, Absorption

Proceedings Article | 15 February 2017 Paper
Proceedings Volume 10057, 100570S (2017) https://doi.org/10.1117/12.2253932
KEYWORDS: Image registration, Thermography, Infrared cameras, Infrared imaging, Infrared radiation, Biomedical optics, Temperature metrology, Thermal imaging cameras, Cameras, Body temperature, Medical imaging, Image restoration, Thermal modeling

Proceedings Article | 21 March 2016 Paper
Jianting Wang, Stanley Huang, Matthew Myers, Yu Chen, Cristin Welle, Joshua Pfefer
Proceedings Volume 9690, 96900U (2016) https://doi.org/10.1117/12.2217771
KEYWORDS: Near infrared spectroscopy, Ultrasonography, Traumatic brain injury, Blood, Transducers, Skin, Brain, Skull, Head, Signal detection

Proceedings Article | 18 March 2016 Presentation + Paper
Proceedings Volume 9700, 970006 (2016) https://doi.org/10.1117/12.2220412
KEYWORDS: Imaging systems, Luminescence, Near infrared, Standards development, CCD cameras, Cell phones, 3D printing, Tissues, Image quality standards, Biomedical optics, Image quality, Scattering, Cameras, Absorption

Proceedings Article | 18 March 2016 Presentation + Paper
Proceedings Volume 9700, 97000D (2016) https://doi.org/10.1117/12.2214750
KEYWORDS: Nanoparticles, Hyperspectral imaging, Plasmonics, Biological research, Reflectivity, Tissues, Imaging devices, Gold, Cancer, Absorption, Imaging systems, Biomedical optics, Neodymium, Ions

Proceedings Article | 18 March 2016 Presentation + Paper
Proceedings Volume 9700, 97000F (2016) https://doi.org/10.1117/12.2214870
KEYWORDS: Nanoparticles, Acquisition tracking and pointing, Monte Carlo methods, Plasmonics, Safety, Photoacoustic tomography, Thermography, Near infrared, Chromophores, Laser tissue interaction, Breast, Tumors, Tissue optics, Temperature metrology, Thermal effects

Proceedings Article | 15 March 2016 Paper
William Vogt, Congxian Jia, Keith Wear, Brian Garra, T. Joshua Pfefer
Proceedings Volume 9708, 97081H (2016) https://doi.org/10.1117/12.2213468
KEYWORDS: Nanoparticles, Acquisition tracking and pointing, Blood, Photoacoustic tomography, Tissue optics, Gold, Molecular imaging, Target detection, Tissues, Acoustics, Absorption, Spectrophotometry, Scattering

SPIE Journal Paper | 17 February 2016 Open Access
Congxian Jia, William Vogt, Keith Wear, Brian Garra, T. Joshua Pfefer
JBO, Vol. 21, Issue 10, 101405, (February 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.10.101405
KEYWORDS: Acoustics, Signal attenuation, Tissue optics, Tissues, Scattering, Absorption, Acquisition tracking and pointing, Glasses, Photoacoustic imaging, Optical properties

SPIE Journal Paper | 10 December 2015 Open Access
Pejhman Ghassemi, Jianting Wang, Anthony Melchiorri, Jessica Ramella-Roman, Scott Mathews, James Coburn, Brian Sorg, Yu Chen, T. Joshua Pfefer
JBO, Vol. 20, Issue 12, 121312, (December 2015) https://doi.org/10.1117/12.10.1117/1.JBO.20.12.121312
KEYWORDS: Printing, 3D printing, Reflectivity, Biomimetics, Tissues, Yeast, Rapid manufacturing, 3D image processing, Hyperspectral imaging, Chromophores

Proceedings Article | 18 March 2015 Paper
Quanzeng Wang, Kurt Castro, Viraj Desai, Wei-Chung Cheng, Joshua Pfefer
Proceedings Volume 9412, 94123A (2015) https://doi.org/10.1117/12.2082077
KEYWORDS: Distortion, Endoscopes, Endoscopy, Standards development, Ruthenium, Image analysis, Image quality standards, Optical proximity correction, Image quality, Medical imaging

Proceedings Article | 11 March 2015 Paper
William Vogt, Congxian Jia, Keith Wear, Brian Garra, Joshua Pfefer
Proceedings Volume 9315, 931502 (2015) https://doi.org/10.1117/12.2082847
KEYWORDS: Acquisition tracking and pointing, Photoacoustic spectroscopy, Tissue optics, Absorption, Imaging systems, Ultrasonography, Transducers, Acoustics, Optical parametric oscillators, Tissues

Proceedings Article | 11 March 2015 Paper
William Vogt, Congxian Jia, Keith Wear, Brian Garra, Joshua Pfefer
Proceedings Volume 9323, 932333 (2015) https://doi.org/10.1117/12.2080283
KEYWORDS: Acoustics, Transducers, Tissue optics, Ultrasonography, Acquisition tracking and pointing, Imaging systems, Tissues, Signal attenuation, Photoacoustic spectroscopy, Optical properties

Proceedings Article | 11 March 2015 Paper
Hyounguk Jang, Karam Singh, Hsing-Wen Wang, T. Pfefer, Yu Chen
Proceedings Volume 9315, 931503 (2015) https://doi.org/10.1117/12.2087095
KEYWORDS: Near infrared spectroscopy, Tissues, Absorbance, Optical properties, Oximetry, Spectrophotometry, Fiber optics, Tissue optics, Solids, Light sources

Proceedings Article | 6 March 2015 Paper
Proceedings Volume 9325, 932508 (2015) https://doi.org/10.1117/12.2084720
KEYWORDS: 3D printing, Imaging systems, 3D image processing, Reflectivity, Printing, Yeast, Hyperspectral imaging, Image segmentation, Tissues, Oximetry

Proceedings Article | 22 May 2014 Paper
Proceedings Volume 9107, 91070C (2014) https://doi.org/10.1117/12.2053721
KEYWORDS: Optical coherence tomography, Scattering, Standards development, Tissues, Signal detection, Quantitative analysis, Medical imaging modalities, Signal attenuation, Visualization, Image resolution

Proceedings Article | 22 May 2014 Paper
William Vogt, Congxian Jia, Brian Garra, T. Joshua Pfefer
Proceedings Volume 9107, 910719 (2014) https://doi.org/10.1117/12.2053583
KEYWORDS: Tissue optics, Acoustics, Signal attenuation, Acquisition tracking and pointing, Absorption, Tissues, Photoacoustic spectroscopy, Scattering, Optical properties, Titanium dioxide

Proceedings Article | 10 March 2014 Paper
Proceedings Volume 8936, 89360M (2014) https://doi.org/10.1117/12.2044089
KEYWORDS: Printing, 3D printing, Optical coherence tomography, Imaging systems, Biomedical optics, Scattering, Reflectivity, Optical properties, Absorption, Rapid manufacturing

Proceedings Article | 5 March 2014 Paper
Daniel Hammer, Andrea Lozzi, Erkinay Abliz, Noah Greenbaum, Kevin Turner, T. Joshua Pfefer, Anant Agrawal, Victor Krauthamer, Cristin Welle
Proceedings Volume 8928, 892804 (2014) https://doi.org/10.1117/12.2040972
KEYWORDS: Electrodes, Angiography, Capillaries, Tissues, Optical coherence tomography, Optical coherence microscopy, Surgery, Tissue optics, Coherence (optics), Spectroscopy

Proceedings Article | 4 March 2014 Paper
Proceedings Volume 8936, 893603 (2014) https://doi.org/10.1117/12.2044379
KEYWORDS: Tissues, Tissue optics, Laser tissue interaction, Blood vessels, Pulsed laser operation, 3D modeling, Thermal modeling, Skin, Natural surfaces, Geometrical optics

Proceedings Article | 31 December 2013 Paper
Quanzeng Wang, Viraj Desai, Ying Ngo, Wei-Chung Cheng, Joshua Pfefer
Proceedings Volume 9042, 904205 (2013) https://doi.org/10.1117/12.2044103
KEYWORDS: Distortion, Endoscopes, Endoscopy, Standards development, Image quality standards, Geometrical optics, Optical proximity correction, MATLAB, Image analysis, Image quality

SPIE Journal Paper | 16 September 2013 Open Access
Jigesh Baxi, William Calhoun, Yasir Sepah, Daniel Hammer, Ilko Ilev, T. Joshua Pfefer, Quan Dong Nguyen, Anant Agrawal
JBO, Vol. 19, Issue 02, 021106, (September 2013) https://doi.org/10.1117/12.10.1117/1.JBO.19.2.021106
KEYWORDS: Optical coherence tomography, Eye, Coating, Tissues, Retina, Eye models, Scattering, Particles, Optical properties, Imaging systems

Proceedings Article | 31 May 2013 Paper
Proceedings Volume 8719, 87190Y (2013) https://doi.org/10.1117/12.2018285
KEYWORDS: Absorption, Reflectivity, 3D printing, Biomedical optics, Printing, Optical coherence tomography, Tissues, Optical properties, Scattering, Hyperspectral imaging

Proceedings Article | 31 May 2013 Paper
Proceedings Volume 8719, 87190X (2013) https://doi.org/10.1117/12.2018311
KEYWORDS: Safety, Thermal modeling, Laser tissue interaction, Tissue optics, Skin, Optical simulations, Photoacoustic spectroscopy, Monte Carlo methods, Data modeling, Breast

Proceedings Article | 13 March 2013 Paper
Proceedings Volume 8573, 85730N (2013) https://doi.org/10.1117/12.2008768
KEYWORDS: Scattering, Absorption, Tissues, Reflectivity, Capillaries, Visualization, Blood, Blood vessels, Light scattering, Monte Carlo methods

Proceedings Article | 13 March 2013 Paper
Proceedings Volume 8573, 85730C (2013) https://doi.org/10.1117/12.2007005
KEYWORDS: Point spread functions, Optical coherence tomography, Particles, Silica, Spatial resolution, Gold, Image quality standards, Optical resolution, Image quality, Backscatter

SPIE Journal Paper | 13 December 2012 Open Access
JBO, Vol. 18, Issue 01, 010504, (December 2012) https://doi.org/10.1117/12.10.1117/1.JBO.18.1.010504
KEYWORDS: Absorption, Monte Carlo methods, Scattering, Tissue optics, Tissues, Optical properties, Capillaries, Reflectivity, Instrument modeling, Blood vessels

Proceedings Article | 16 May 2012 Paper
Proceedings Volume 8367, 836709 (2012) https://doi.org/10.1117/12.918375
KEYWORDS: Tissues, Absorption, Scattering, Blood, Reflectivity, Monte Carlo methods, Blood vessels, Photons, Visualization, Optical properties

Proceedings Article | 16 May 2012 Paper
Proceedings Volume 8367, 83670H (2012) https://doi.org/10.1117/12.920699
KEYWORDS: Glucose, Luminescence, Biosensors, Sensors, Fluorescence resonance energy transfer, Receptors, Polymers, Biosensing, Molecules, Calibration

Proceedings Article | 28 February 2012 Paper
Proceedings Volume 8215, 821505 (2012) https://doi.org/10.1117/12.906817
KEYWORDS: Tissues, Absorption, Visualization, Blood vessels, Scattering, Reflectivity, Blood, Photons, Monte Carlo methods, Bandpass filters

Proceedings Article | 28 February 2012 Paper
Proceedings Volume 8215, 82150D (2012) https://doi.org/10.1117/12.912371
KEYWORDS: Optical coherence tomography, Standards development, Spatial resolution, Image quality standards, Image quality, Ultrasonography, Modulation transfer functions, Magnetic resonance imaging, Point spread functions, Tissues

Proceedings Article | 22 February 2011 Paper
Proceedings Volume 7891, 78910F (2011) https://doi.org/10.1117/12.879647
KEYWORDS: Reflectivity, Tissues, Data modeling, Absorption, Fiber optics, Scattering, Optical fibers, Optical properties, Monte Carlo methods, Calibration

Proceedings Article | 11 February 2011 Paper
Anant Agrawal, Robert Chang, Megan Connors, Christopher Stafford, Jeeseong Hwang, Joshua Pfefer
Proceedings Volume 7906, 79060R (2011) https://doi.org/10.1117/12.880958
KEYWORDS: Optical coherence tomography, Silicon, Spatial frequencies, Spatial resolution, Phase modulation, Imaging systems, Image resolution, Contrast transfer function, Particles, Specular reflections

Proceedings Article | 24 February 2010 Paper
Proceedings Volume 7556, 75560J (2010) https://doi.org/10.1117/12.842412
KEYWORDS: Reflectivity, Tissues, Data modeling, Tissue optics, Monte Carlo methods, Optical properties, Optical fibers, Fiber optics, In situ metrology, Diffuse reflectance spectroscopy

Proceedings Article | 25 February 2009 Paper
Proceedings Volume 7170, 71700I (2009) https://doi.org/10.1117/12.813847
KEYWORDS: Monte Carlo methods, Optical fibers, Optical properties, Reflectivity, Tissue optics, Neural networks, Tissues, Data modeling, Computer simulations, Photon transport

Proceedings Article | 24 February 2009 Paper
Proceedings Volume 7187, 718702 (2009) https://doi.org/10.1117/12.809488
KEYWORDS: Melanoma, Optical properties, Absorption, Tissue optics, Tissues, Scattering, Silicon, Monte Carlo methods, Skin, Light scattering

Proceedings Article | 6 March 2008 Paper
Proceedings Volume 6849, 68490G (2008) https://doi.org/10.1117/12.769054
KEYWORDS: Optical fibers, Reflectivity, Optical properties, Monte Carlo methods, Tissue optics, Neural networks, Tissues, Fiber optics, Absorption, Liver

Proceedings Article | 21 February 2008 Paper
Anant Agrawal, Marios Gavrielides, Sandy Weininger, Kish Chakrabarti, Joshua Pfefer
Proceedings Volume 6870, 687005 (2008) https://doi.org/10.1117/12.768537
KEYWORDS: Mammography, Standards development, Oximeters, Optical diagnostics, Image quality, X-ray computed tomography, Imaging systems, Computed tomography, Oximetry, Manufacturing

Proceedings Article | 6 February 2007 Paper
Anant Agrawal, Camisha Parker, Tariq Qazi, Krishan Agrawal, Joshua Pfefer
Proceedings Volume 6430, 643022 (2007) https://doi.org/10.1117/12.717654
KEYWORDS: Luminescence, Tissues, Deconvolution, Time resolved spectroscopy, Biological research, Testing and analysis, Diagnostics, Tissue optics, Statistical analysis, Chemical analysis

SPIE Journal Paper | 1 July 2006 Open Access
JBO, Vol. 11, Issue 04, 041121, (July 2006) https://doi.org/10.1117/12.10.1117/1.2339071
KEYWORDS: Optical coherence tomography, Signal attenuation, Gold, Backscatter, Tissues, Scattering, Tumors, Particles, Optical properties, Signal detection

Proceedings Article | 15 February 2006 Paper
Proceedings Volume 6083, 608305 (2006) https://doi.org/10.1117/12.646960
KEYWORDS: Tissues, Luminescence, Monte Carlo methods, Signal detection, Time resolved spectroscopy, Fluorescence spectroscopy, Tissue optics, Optical properties, Computational modeling, Scattering

Proceedings Article | 8 October 2005 Paper
Proceedings Volume 5862, 58620Q (2005) https://doi.org/10.1117/12.633031
KEYWORDS: Fluorescence spectroscopy, Signal attenuation, Luminescence, Signal detection, Monte Carlo methods, Tissue optics, Tissues, Optical properties, Photodetectors, Natural surfaces

Proceedings Article | 7 October 2005 Paper
Proceedings Volume 5861, 58610X (2005) https://doi.org/10.1117/12.632991
KEYWORDS: Optical coherence tomography, Scattering, Gold, Tissues, Signal attenuation, Absorption, Backscatter, Biomedical optics, Nanoparticles, Light scattering

SPIE Journal Paper | 1 July 2005 Open Access
JBO, Vol. 10, Issue 04, 044016, (July 2005) https://doi.org/10.1117/12.10.1117/1.1989308
KEYWORDS: Signal attenuation, Signal detection, Fluorescence spectroscopy, Tissue optics, Luminescence, Photons, Optical properties, Monte Carlo methods, Tissues, Interfaces

SPIE Journal Paper | 1 July 2005 Open Access
JBO, Vol. 10, Issue 04, 044017, (July 2005) https://doi.org/10.1117/12.10.1117/1.1989335
KEYWORDS: Reflectivity, Tissue optics, Photons, Tissues, Natural surfaces, Monte Carlo methods, Glasses, Fiber optics, Index matching antireflective coatings, Signal detection

Proceedings Article | 23 March 2005 Paper
Thomas Pfefer, Divyesh Sharma, Anant Agrawal, L. Stephanie Matchette
Proceedings Volume 5691, (2005) https://doi.org/10.1117/12.591101
KEYWORDS: Optical properties, Reflectivity, Data modeling, Tissue optics, Calibration, Tissues, Fiber optics, Diffuse reflectance spectroscopy, Optical testing, Monte Carlo methods

Proceedings Article | 23 March 2005 Paper
Proceedings Volume 5691, (2005) https://doi.org/10.1117/12.593655
KEYWORDS: Reflectivity, Tissue optics, Photons, Tissues, Natural surfaces, Monte Carlo methods, Fiber optics, Glasses, Signal detection, Index matching antireflective coatings

Proceedings Article | 10 June 2004 Paper
Proceedings Volume 5317, (2004) https://doi.org/10.1117/12.546520
KEYWORDS: Luminescence, Signal attenuation, Fluorescence spectroscopy, Tissue optics, Monte Carlo methods, Tissues, Optical properties, Fiber optics, Signal detection, Natural surfaces

Proceedings Article | 1 July 2003 Paper
T. Joshua Pfefer, L. Stephanie Matchette, Amanda Ross, Marwood Ediger
Proceedings Volume 4957, (2003) https://doi.org/10.1117/12.478055
KEYWORDS: Luminescence, Fluorescence spectroscopy, Fiber optics, Signal detection, Rhodamine, Tissue optics, Tissues, Absorption, Monte Carlo methods, Scattering

SPIE Journal Paper | 1 April 2003 Open Access
T. Joshua Pfefer, L. Stephanie Matchette, Carrie Bennett, Jessica Gall, Joy Wilke, Anthony Durkin, Marwood Ediger
JBO, Vol. 8, Issue 02, (April 2003) https://doi.org/10.1117/12.10.1117/1.1559487
KEYWORDS: Optical properties, Data modeling, Calibration, Tissue optics, Reflectivity, Monte Carlo methods, Computer simulations, Liver, Tissues, Scattering

Proceedings Article | 1 May 2002 Paper
T. Joshua Pfefer, L. Stephanie Matchette, Carrie Bennett, Joy Wilke, Anthony Durkin, Marwood Ediger
Proceedings Volume 4613, (2002) https://doi.org/10.1117/12.465248
KEYWORDS: Optical properties, Data modeling, Reflectivity, Calibration, Tissue optics, Scattering, Neural networks, Monte Carlo methods, Absorption, Visible radiation

Proceedings Article | 9 July 2001 Paper
Proceedings Volume 4257, (2001) https://doi.org/10.1117/12.434727
KEYWORDS: Luminescence, Fluorescence spectroscopy, Tissue optics, Tissues, Monte Carlo methods, Laser induced fluorescence, Photodetectors, Fiber optics, Optical design, Signal detection

Proceedings Article | 23 May 2001 Paper
Proceedings Volume 4251, (2001) https://doi.org/10.1117/12.427891
KEYWORDS: Optical coherence tomography, Blood, Blood vessels, Tissue optics, Pulsed laser operation, Tissues, Laser tissue interaction, In vivo imaging, Laser irradiation, Skin

Proceedings Article | 28 April 2000 Paper
Proceedings Volume 3925, (2000) https://doi.org/10.1117/12.384253
KEYWORDS: Laser ablation, Absorption, Calculi, Laser damage threshold, Tissue optics, Calculus, Absorbance, Hard tissue optics, Free electron lasers, Infrared radiation

Proceedings Article | 22 June 1999 Paper
Proceedings Volume 3590, (1999) https://doi.org/10.1117/12.350970
KEYWORDS: Blood, Pulsed laser operation, Temperature metrology, Laser damage threshold, Optical coherence tomography, Scattering, In vitro testing, Laser scattering, Cameras, Skin

Proceedings Article | 14 June 1999 Paper
Kin Foong Chan, George Vassar, T. Joshua Pfefer, Joel Teichman, Randolph Glickman, Susan Weintraub, Ashley Welch
Proceedings Volume 3601, (1999) https://doi.org/10.1117/12.350023
KEYWORDS: Holmium, Acoustics, Pulsed laser operation, Laser energy, Laser therapeutics, Laser lithotripsy, Photography, Cavitation, Calculus, Fiber lasers

Proceedings Article | 14 June 1999 Paper
Randolph Glickman, Joel Teichman, George Vassar, Susan Weintraub, Kin Foong Chan, T. Joshua Pfefer, Ashley Welch
Proceedings Volume 3601, (1999) https://doi.org/10.1117/12.350022
KEYWORDS: Laser ablation, Magnesium, Cyanide, Calcium, Laser energy, Calculi, Pulsed laser operation, Absorption, Laser therapeutics, Chemical analysis

Proceedings Article | 1 July 1998 Paper
T. Joshua Pfefer, Jennifer Barton, Derek Smithies, Thomas Milner, J. Stuart Nelson, Martin van Gemert, Ashley Welch
Proceedings Volume 3245, (1998) https://doi.org/10.1117/12.312302
KEYWORDS: 3D modeling, Tissues, Monte Carlo methods, Tissue optics, Blood vessels, Thermal modeling, Laser therapeutics, Optical simulations, Blood, Skin

Proceedings Article | 13 May 1998 Paper
Proceedings Volume 3254, (1998) https://doi.org/10.1117/12.308164
KEYWORDS: Pulsed laser operation, Absorption, Data modeling, Optical simulations, Laser scattering, Thermal modeling, Diffusion, Thermography, Tissues, Tissue optics

Proceedings Article | 13 May 1998 Paper
Proceedings Volume 3254, (1998) https://doi.org/10.1117/12.308174
KEYWORDS: Temperature metrology, Pulsed laser operation, Luminescence, Fiber lasers, Optical fibers, Infrared radiation, Photography, Spatial resolution, Spherical lenses, Laser irradiation

Proceedings Article | 16 June 1997 Paper
T. Joshua Pfefer, Jennifer Barton, Eric Chan, Mathieu Ducros, Brian Sorg, Thomas Milner, J. Stuart Nelson, Ashley Welch
Proceedings Volume 2975, (1997) https://doi.org/10.1117/12.275468
KEYWORDS: Monte Carlo methods, Tissue optics, Blood vessels, Tissues, 3D modeling, Photon transport, Skin, Optical simulations, Data modeling, Absorption

SPIE Journal Paper | 2 April 1997 Open Access
Jennifer Barton, Thomas Milner, T. Joshua Pfefer, J. Stuart Nelson, Ashley Welch
JBO, Vol. 2, Issue 02, (April 1997) https://doi.org/10.1117/12.10.1117/12.268957
KEYWORDS: Blood vessels, Skin, Tissues, Monte Carlo methods, Confocal microscopy, Blood, Reflectometry, Photons, Tissue optics, Doppler effect

Proceedings Article | 17 May 1996 Paper
E. Duco Jansen, Martin Frenz, Kamuran Kadipasaoglu, T. Joshua Pfefer, Hans Altermatt, Massoud Motamedi, Ashley Welch
Proceedings Volume 2671, (1996) https://doi.org/10.1117/12.239990
KEYWORDS: Laser tissue interaction, Pulsed laser operation, Tissues, Liquids, Laser ablation, Heart, Laser drilling, Photography, Tissue optics, Natural surfaces

Proceedings Article | 12 May 1995 Paper
E. Duco Jansen, Massoud Motamedi, T. Joshua Pfefer, Thomas Asshauer, Martin Frenz, Guy Delacretaz, George Abela, Ashley Welch
Proceedings Volume 2395, (1995) https://doi.org/10.1117/12.209071
KEYWORDS: Pulsed laser operation, Laser tissue interaction, Laser ablation, Tissues, Fiber lasers, Q switched lasers, Holmium, Q switching, Photography, Picosecond phenomena

Showing 5 of 108 publications
Proceedings Volume Editor (18)

SPIE Conference Volume | 3 April 2024

SPIE Conference Volume | 30 March 2023

SPIE Conference Volume | 25 March 2022

SPIE Conference Volume | 30 March 2021

SPIE Conference Volume | 12 March 2020

SPIE Conference Volume | 4 April 2019

SPIE Conference Volume | 11 May 2018

SPIE Conference Volume | 12 April 2017

SPIE Conference Volume | 8 July 2016

SPIE Conference Volume | 9 April 2015

SPIE Conference Volume | 11 March 2014

SPIE Conference Volume | 15 March 2013

SPIE Conference Volume | 8 March 2012

SPIE Conference Volume | 20 February 2011

SPIE Conference Volume | 23 February 2010

SPIE Conference Volume | 23 February 2009

SPIE Conference Volume | 12 February 2008

SPIE Conference Volume | 1 February 2007

Showing 5 of 18 publications
Conference Committee Involvement (42)
Smart Biomedical and Physiological Sensor Technology XXII
14 April 2025 | Orlando, Florida, United States
Design and Quality for Biomedical Technologies XVIII
25 January 2025 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology XXI
22 April 2024 | National Harbor, Maryland, United States
Design and Quality for Biomedical Technologies XVII
27 January 2024 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology XX
1 May 2023 | Orlando, Florida, United States
Design and Quality for Biomedical Technologies XVI
28 January 2023 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology XIX
4 April 2022 | Orlando, Florida, United States
Design and Quality for Biomedical Technologies XV
22 January 2022 | San Francisco, California, United States
Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables III
22 January 2022 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology XVIII
12 April 2021 | Online Only, Florida, United States
Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables II
6 March 2021 | Online Only, California, United States
Design and Quality for Biomedical Technologies XIV
6 March 2021 | Online Only, California, United States
Biophotonics in Exercise Science, Sports Medicine, Health Monitoring Technologies, and Wearables
1 February 2020 | San Francisco, California, United States
Design and Quality for Biomedical Technologies XIII
1 February 2020 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology XVI
15 April 2019 | Baltimore, MD, United States
Design and Quality for Biomedical Technologies XII
2 February 2019 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology XV
15 April 2018 | Orlando, FL, United States
Design and Quality for Biomedical Technologies XI
27 January 2018 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology XIV
9 April 2017 | Anaheim, CA, United States
Design and Quality for Biomedical Technologies X
28 January 2017 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology XIII
18 April 2016 | Baltimore, MD, United States
Design and Quality for Biomedical Technologies IX
13 February 2016 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology XII
23 April 2015 | Baltimore, MD, United States
Design and Quality for Biomedical Technologies VIII
7 February 2015 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology XI
7 May 2014 | Baltimore, MD, United States
Design and Quality for Biomedical Technologies VII
1 February 2014 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology X
1 May 2013 | Baltimore, Maryland, United States
Design and Quality for Biomedical Technologies VI
2 February 2013 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology IX
26 April 2012 | Baltimore, Maryland, United States
Design and Quality for Biomedical Technologies V
22 January 2012 | San Francisco, California, United States
7th NIH Inter-Institute Workshop on Optical Diagnostic and Biophotonic Methods from Bench to Bedside
15 September 2011 | Bethesda, Maryland, United States
Smart Biomedical and Physiological Sensor Technology VIII
28 April 2011 | Orlando, Florida, United States
Design and Quality for Biomedical Technologies IV
24 January 2011 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technologies VII
8 April 2010 | Orlando, Florida, United States
Design and Quality for Biomedical Technologies III
25 January 2010 | San Francisco, California, United States
Smart Biomedical and Physiological Sensor Technology VI
16 April 2009 | Orlando, Florida, United States
Design and Quality for Biomedical Technologies II
26 January 2009 | San Jose, California, United States
Design and Quality for Biomedical Technologies
21 January 2008 | San Jose, California, United States
Infrared, Mid-IR, and Terahertz Technologies for Health and the Environment II
10 September 2007 | Boston, MA, United States
Quality and Reliability of Technologies for Medicine and Biomedical Devices
23 January 2007 | San Jose, California, United States
Infrared, Mid-IR, and THz Technologies for Health and the Environment
2 October 2006 | Boston, Massachusetts, United States
Infrared to Terahertz Technologies for Health and the Environment
24 October 2005 | Boston, MA, United States
Showing 5 of 42 Conference Committees
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