Prof. Enam A. Chowdhury
Assistant Professor at Ohio State Univ
SPIE Involvement:
Conference Program Committee | Author
Publications (47)

Proceedings Article | 18 December 2024 Poster
Adam Fisher, Ryan Siebenaller, Emma DeAngelis, Mohamed Yaseen, Conrad Kuz, Justin Twardowski, Milo Eder, Su Ziyao, Enam Chowdhury
Proceedings Volume PC13190, PC131900Q (2024) https://doi.org/10.1117/12.3032774
KEYWORDS: Plasma, Metals, Femtosecond phenomena, Laser induced damage, Polarization, Atomic force microscopy, Third harmonic generation, Optical components, Laser soldering, Laser irradiation

Proceedings Article | 18 December 2024 Poster
Proceedings Volume PC13190, PC131900U (2024) https://doi.org/10.1117/12.3030814
KEYWORDS: Femtosecond phenomena, Optical coatings, Laser optics, High power lasers, Laser induced damage, Transmission electron microscopy, Silica, Scanning electron microscopy, Refractive index, Reflection

Proceedings Article | 18 December 2024 Presentation
Ziyao Su, Joseph Smith, Enam Chowdhury
Proceedings Volume PC13190, PC1319006 (2024) https://doi.org/10.1117/12.3033000
KEYWORDS: Photonic integrated circuits, Plasma, Simulations, Reflectors, Laser damage threshold, Femtosecond phenomena, Dielectrics, Silica, Particles, Motion models

Proceedings Article | 18 December 2024 Poster
Proceedings Volume PC13190, PC131900X (2024) https://doi.org/10.1117/12.3033005
KEYWORDS: Transmission electron microscopy, Laser induced damage, Ultrafast phenomena, Silica, Dielectrics, Optical components, Optical coatings, Laser irradiation, Laser applications, Laser-matter interactions

Proceedings Article | 18 December 2024 Presentation
Conrad Kuz, Andy Lee, Mohamed Yaseen Noor, Justin Twardowski, Liam Clink, Emma DeAngelis, Enam Chowdhury
Proceedings Volume PC13190, PC1319007 (2024) https://doi.org/10.1117/12.3032771
KEYWORDS: Laser induced damage, Laser damage threshold, Copper, Femtosecond phenomena, Modeling, Materials properties, Laser crystals, Crystals, Atomic force microscopy, Vacuum

Proceedings Article | 24 November 2023 Poster
Samuel Castro Lucas, Maxwell Weiss, Carmen Menoni, Mohamed Yaseen Noor, Emma DeAngelis, Gulsum Salman, Aamir Mushtaq, Enam Chowdhury, Egidijus Pupka, Austėja Aleksiejūtė, Justinas Galinis, Andrius Melninkaitis
Proceedings Volume PC12726, PC127260Y (2023) https://doi.org/10.1117/12.2685287
KEYWORDS: Antireflective coatings, Laser damage threshold, Silica, Laser induced damage, Mixtures, Pulse signals, Picosecond phenomena, Laser applications, Sputter deposition, Simulations

Proceedings Article | 24 November 2023 Presentation
Simin Zhang, Joseph Smith, Maxim Shcherbakov, Giovanni Sartorello, Michael Tripepi, Gennady Shvets, Enam Chowdhury
Proceedings Volume PC12726, PC127260O (2023) https://doi.org/10.1117/12.2685251
KEYWORDS: Mid-IR, Laser microstructuring, Laser ablation, Dielectrics, Particles, Modeling, Photonic integrated circuits, Femtosecond pulse shaping, Diffraction limit, Dielectric polarization

Proceedings Article | 24 November 2023 Paper
Zhihan Li, Liam Clink, Conrad Kuz, Jay Gupta, Enam Chowdhury
Proceedings Volume 12726, 127260P (2023) https://doi.org/10.1117/12.2685136
KEYWORDS: Scanning tunneling microscopy, Silicon, Laser induced damage, Ultrafast lasers, Oxides, Vacuum, Vacuum chambers, Amorphous semiconductors

Proceedings Article | 24 November 2023 Presentation
Liam Clink, Zhihan Li, Mohamed Yaseen Noor, Jay Gupta, Enam Chowdhury
Proceedings Volume PC12726, PC127260P (2023) https://doi.org/10.1117/12.2685023
KEYWORDS: Vacuum, Ultrafast lasers, Silicon, Semiconductor lasers, Scanning tunneling microscopy, Laser processing, Laser induced damage, Surface properties, Semiconductors, Pulsed laser operation

Proceedings Article | 24 November 2023 Presentation
Proceedings Volume PC12726, PC127260Q (2023) https://doi.org/10.1117/12.2684484
KEYWORDS: Laser irradiation, Fluoride, Calcium, Femtosecond phenomena, Ultrafast phenomena, Surface finishing, High power lasers, Crystals, Thermal deformation, Rectangular pulse

Proceedings Article | 24 November 2023 Presentation
Proceedings Volume PC12726, PC127260K (2023) https://doi.org/10.1117/12.2685130
KEYWORDS: Multilayers, Crystals, Ultrafast lasers, Laser crystals, Dielectric mirrors, Transmission electron microscopy, Laser irradiation, Ultrafast phenomena, Laser systems engineering, Laser optics

Proceedings Article | 24 November 2023 Poster
Conrad Kuz, Justin Twardowski, Parker Vaughan, Emma DeAngelis, Mohammad Mahafuzur Rahaman, Mohamed Yaseen Noor, Enam Chowdhury
Proceedings Volume PC12726, PC127261C (2023) https://doi.org/10.1117/12.2685247
KEYWORDS: Bessel beams, Glasses, Femtosecond phenomena, Laser cutting, Ablation, Reproducibility, Laser processing, Wet etching, Thermal effects, Scanning electron microscopy

Proceedings Article | 3 December 2022 Poster + Presentation
Proceedings Volume PC12300, PC1230013 (2022) https://doi.org/10.1117/12.2642771
KEYWORDS: Wide bandgap semiconductors, Laser damage threshold, Ultrafast lasers, Surface plasmons, Silicon carbide, Atomic force microscopy, Oxides, Optical microscopy, Microscopy, Laser induced damage

Proceedings Article | 3 December 2022 Presentation
Proceedings Volume PC12300, PC123000R (2022) https://doi.org/10.1117/12.2641646
KEYWORDS: Femtosecond phenomena, Mid-IR, Dielectric mirrors, Mirrors, Laser optics, Laser applications, Laser ablation, Dielectrics, YAG lasers, Ultrafast phenomena

Proceedings Article | 3 December 2022 Presentation
Md Mohsinur Rahman Adnan, Mohamed Yaseen Noor, Conrad Kuz, Justin Twardowski, Michael Tripepi, Enam Chowdhury
Proceedings Volume PC12300, PC1230004 (2022) https://doi.org/10.1117/12.2642531
KEYWORDS: Diamond, Wavelength division multiplexing, Clouds, Physics, Temporal resolution, States of matter, Spatial resolution, Sapphire lasers, Plasma, Picosecond phenomena

Proceedings Article | 3 December 2022 Presentation
Proceedings Volume PC12300, PC123000N (2022) https://doi.org/10.1117/12.2642692
KEYWORDS: Laser induced damage, Dielectric mirrors, Laser systems engineering, Optical coatings, Mirrors, High power lasers, Ultrafast lasers, Sputter deposition, Reflectors, Optical components

Proceedings Article | 3 December 2022 Presentation
Proceedings Volume PC12300, PC1230005 (2022) https://doi.org/10.1117/12.2641262
KEYWORDS: Pulsed laser operation, Femtosecond phenomena, Ultrafast lasers, Semiconductors, Crystals, Oxygen, Optoelectronic devices, Nonmetals, Microscopy, Laser induced damage

Proceedings Article | 2 December 2022 Presentation + Paper
Liam Clink, Zhihan Li, Conrad Kuz, Jay Gupta, Enam Chowdhury
Proceedings Volume 12300, 1230005 (2022) https://doi.org/10.1117/12.2637432
KEYWORDS: Scanning tunneling microscopy, Laser induced damage, Semiconductor lasers, Silicon, Crystals, Ultrafast lasers, Laser crystals, Laser ablation, Objectives, Near infrared

Proceedings Article | 12 October 2021 Presentation
Proceedings Volume 11910, 119100E (2021) https://doi.org/10.1117/12.2598480
KEYWORDS: Coating, Photonic integrated circuits, Optical simulations, Electrons, Multilayer interference, Laser induced damage, Dielectrics, Plasmas, Fusion energy, Multilayers

Proceedings Article | 12 October 2021 Poster
Michael Tripepi, Noah Talisa, Emma DeAngelis, Enam Chowdhury
Proceedings Volume 11910, 119101A (2021) https://doi.org/10.1117/12.2598673

Proceedings Article | 12 October 2021 Poster + Presentation
Proceedings Volume 11910, 119101H (2021) https://doi.org/10.1117/12.2597749
KEYWORDS: Dielectrics, Optical simulations, Femtosecond phenomena, Laser induced damage, Silica, Optical design, Diffraction gratings, Ultrafast lasers, Photonics, Multilayers

Proceedings Article | 5 March 2021 Presentation + Paper
Anthony Valenzuela, Aaron Schweinsberg, Jiahui Gu, Miroslav Kolesik, Trenton Ensley, Laura Vanderhoef, Michael Tripepi, Christopher Wolfe, Enam Chowdhury
Proceedings Volume 11670, 116700C (2021) https://doi.org/10.1117/12.2578794
KEYWORDS: Mid-IR, Ultrafast phenomena, Pulsed laser operation, Optical simulations, Frequency conversion, Wave propagation, Crystals, Sum-frequency generation, Solids, Solid modeling

Proceedings Article | 9 November 2020 Poster + Presentation + Paper
Proceedings Volume 11514, 115141T (2020) https://doi.org/10.1117/12.2571081
KEYWORDS: Ionization, Ultrafast phenomena, Multilayers, Dielectrics, Multilayer interference, Thin films, Thin film coatings, Absorption, Ultrafast lasers, Particles

Proceedings Article | 14 September 2020 Presentation
Proceedings Volume 11514, 115140R (2020) https://doi.org/10.1117/12.2572273
KEYWORDS: Semiconductor lasers, Laser induced damage, Semiconductors, Mid-IR, Optical simulations, Plasmas, Absorption, Ultrafast phenomena, Femtosecond phenomena, Laser energy

Proceedings Article | 11 September 2020 Presentation
Proceedings Volume 11514, 115141H (2020) https://doi.org/10.1117/12.2574579
KEYWORDS: Femtosecond phenomena, Glasses, Ceramics, Laser ablation, Ultrafast phenomena, Laser applications, Micromachining, Dielectrics, Diffusion, Spatial resolution

Proceedings Article | 20 August 2020 Presentation + Paper
Andrew Barrette, Michael Tripepi, Sean McDaniel, Gary Cook, Kent Averett, Enam Chowdhury, Manuel Ferdinandus, Carl Liebig
Proceedings Volume 11498, 114980C (2020) https://doi.org/10.1117/12.2568584
KEYWORDS: Optical fibers, Supercontinuum generation, Scanning probe microscopy, YAG lasers, Femtosecond phenomena, Crystals, Chromium, Dispersion, Wave plates

Proceedings Article | 2 March 2020 Paper
Michael Tripepi, Michael Hastings, Aaron Schweinsberg, Laura Vanderhoef, Christopher Wolfe, Trenton Ensley, Miroslav Kolesik, Jerome Moloney, Enam Chowdhury, Anthony Valenzuela
Proceedings Volume 11264, 112640Y (2020) https://doi.org/10.1117/12.2547316
KEYWORDS: Medium wave, Crystals, Near infrared, Frequency conversion, Zinc, Mid-IR, Pulsed laser operation, Spectroscopy, Visible radiation, Ultrafast phenomena

Proceedings Article | 20 November 2019 Presentation + Paper
Proceedings Volume 11173, 111730U (2019) https://doi.org/10.1117/12.2536423
KEYWORDS: Hybrid fiber optics, Thin films, Plasma, Laser ablation, Laser induced damage, Femtosecond phenomena, Picosecond phenomena, Laser damage threshold, Reflectivity, Silica, Image transmission

Proceedings Article | 7 October 2019 Presentation + Paper
Laura Vanderhoef, Aaron Schweinsberg, Kevin Werner, Michael Tripepi, Brian Wilmer, Noah Talisa, Trenton Ensley, Christopher Wolfe, Enam Chowdhury, Anthony Valenzuela
Proceedings Volume 11162, 111620O (2019) https://doi.org/10.1117/12.2528835
KEYWORDS: Dispersion, Mid-IR, Supercontinuum generation, Spectroscopy

Proceedings Article | 13 March 2019 Presentation
Proceedings Volume 10928, 109280W (2019) https://doi.org/10.1117/12.2512064
KEYWORDS: Diffraction gratings, Harmonic generation, Mid-IR, Semiconductors, Silicon, Spectroscopy, Photonics, Diffraction, Nonlinear optics, Optical properties

Proceedings Article | 4 March 2019 Paper
Kevin Werner, Michael Tripepi, Aaron Schweinsberg, Michael Hastings, Laura Vanderhoef, Christopher Wolfe, Trenton Ensley, Brian Wilmer, Miroslav Kolesik, Jerome Moloney, Enam Chowdhury, Anthony Valenzuela
Proceedings Volume 10902, 109020W (2019) https://doi.org/10.1117/12.2509928
KEYWORDS: Near infrared, Ultrafast phenomena, Mid-IR, Data modeling, Crystals

Proceedings Article | 17 September 2018 Presentation
Proceedings Volume 10722, 107220T (2018) https://doi.org/10.1117/12.2321398
KEYWORDS: Semiconductors, Silicon, Harmonic generation, Particles, FT-IR spectroscopy, Spectroscopy, Sapphire, Nondestructive evaluation, Refractive index, Fluorescence correlation spectroscopy

Proceedings Article | 14 March 2018 Presentation
Proceedings Volume 10541, 105410A (2018) https://doi.org/10.1117/12.2291268
KEYWORDS: Mid-IR, Antennas, Photonic crystals, Semiconductors, Spectroscopy, Beam splitters, Plasmonics, Metamaterials, Photonic crystal devices, Nanophotonics

Proceedings Article | 6 December 2016 Paper
Kyle R. Kafka, Noah Talisa, Gabriel Tempea, Drake Austin, Catalin Neacsu, Enam Chowdhury
Proceedings Volume 10014, 100140D (2016) https://doi.org/10.1117/12.2245179
KEYWORDS: Thin films, Laser induced damage, Laser damage threshold, Mirrors, Absorption, Coating, Laser ablation, Ionization, Plasma, Ultrafast phenomena

Proceedings Article | 6 December 2016 Paper
Raluca Negres, Christopher Stolz, Kyle R. Kafka, Enam Chowdhury, Matt Kirchner, Kevin Shea, Meaghan Daly
Proceedings Volume 10014, 100140E (2016) https://doi.org/10.1117/12.2244758
KEYWORDS: Mirrors, Thin films, Deposition processes, Laser induced damage, Resistance, Thin film coatings, Hybrid fiber optics, Raster graphics, Optical coatings, Silver

Proceedings Article | 6 December 2016 Paper
Noah Talisa, Kevin Werner, Kyle Kafka, Drake Austin, Enam Chowdhury
Proceedings Volume 10014, 100141U (2016) https://doi.org/10.1117/12.2245175
KEYWORDS: Laser induced damage, Reflectivity, Laser damage threshold, Electrons, Silicon, Gallium arsenide, Crystals, Laser beam diagnostics, Dielectric polarization, Laser crystals

Proceedings Article | 13 May 2016 Paper
Enam Chowdhury, Kyle Kafka, Drake Austin, Kevin Werner, Noah Talisa, Boquin Ma, Cosmin Blaga, Louis DiMauro, Hui Li, Allen Yi
Proceedings Volume 9835, 983519 (2016) https://doi.org/10.1117/12.2223481
KEYWORDS: Germanium, Silicon, Solids, Mid-IR, Ultrafast phenomena, Femtosecond phenomena, Photonics, Photonic crystals, Ionization, Dielectrics

Proceedings Article | 23 November 2015 Paper
Christopher Stolz, Raluca Negres, Kyle Kafka, Enam Chowdhury, Matt Kirchner, Kevin Shea, Meaghan Daly
Proceedings Volume 9632, 96320C (2015) https://doi.org/10.1117/12.2195592
KEYWORDS: Titanium dioxide, Coating, Laser induced damage, Mirrors, Resistance, Silica, Thin films, Deposition processes, Refractive index, Silver

Proceedings Article | 23 November 2015 Paper
K. R. P. Kafka, E. A. Chowdhury, R. Negres, C. Stolz, J. Bude, A. Bayramian, C. Marshall, T. Spinka, C. Haefner
Proceedings Volume 9632, 96321C (2015) https://doi.org/10.1117/12.2195786
KEYWORDS: Raster graphics, Optical coatings, Laser development, Laser induced damage, Dielectrics, Multilayers, Manufacturing, Cameras, Laser systems engineering, Picosecond phenomena

Proceedings Article | 23 November 2015 Paper
Enam Chowdhury, Kyle Kafka, Robert Mitchell, Alex Russell, Kevin Werner, Noah Talisa, Hui Li, Allen Yi, Douglass Schumacher
Proceedings Volume 9632, 96320R (2015) https://doi.org/10.1117/12.2195787
KEYWORDS: Copper, Femtosecond phenomena, Laser ablation, Optical simulations, Photonic integrated circuits, Laser induced damage, Pulsed laser operation, Crystals, Electrons, Laser crystals

Proceedings Article | 23 November 2015 Paper
Robert Mitchell, Douglass Schumacher, Enam Chowdhury
Proceedings Volume 9632, 96320Y (2015) https://doi.org/10.1117/12.2195006
KEYWORDS: Optical simulations, Pulsed laser operation, Particles, Laser induced damage, Electrons, Plasma, Femtosecond phenomena, Laser processing, Copper, Thermal modeling, Dielectrics

Proceedings Article | 4 November 2014 Paper
Kyle Kafka, Drake Austin, Jian Cheng, Simeon Trendafilov, Gennady Shvets, Hui Li, Allen Yi, Cosmin Blaga, L. DiMauro, Enam Chowdhury
Proceedings Volume 9237, 92371S (2014) https://doi.org/10.1117/12.2068254
KEYWORDS: Germanium, Mid-IR, Femtosecond phenomena, Polarization, Infrared lasers, Laser induced damage, Dielectric polarization, Scanning electron microscopy, Pulsed laser operation, Dielectrics

Proceedings Article | 31 October 2014 Paper
Robert Mitchell, Douglass Schumacher, Enam Chowdhury
Proceedings Volume 9237, 92370X (2014) https://doi.org/10.1117/12.2068228
KEYWORDS: Photonic integrated circuits, Laser induced damage, Chemical species, Optical simulations, Copper, Particles, Femtosecond phenomena, Pulsed laser operation, Laser damage threshold, 3D modeling

Proceedings Article | 31 October 2014 Paper
Drake Austin, Kyle Kafka, Cosmin Blaga, Louis Dimauro, Enam Chowdhury
Proceedings Volume 9237, 92370V (2014) https://doi.org/10.1117/12.2068205
KEYWORDS: Silicon, Femtosecond phenomena, Germanium, Mid-IR, Laser damage threshold, Solids, Ionization, Laser induced damage, Infrared cameras, Interfaces

SPIE Journal Paper | 23 July 2014
Robert Mitchell, Douglass Schumacher, Enam Chowdhury
OE, Vol. 53, Issue 12, 122507, (July 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.12.122507
KEYWORDS: Photonic integrated circuits, Laser induced damage, Particles, Femtosecond phenomena, Optical simulations, Electrons, Ionization, Chemical species, Copper, Monte Carlo methods

Proceedings Article | 14 November 2013 Paper
Robert Mitchell, Douglass Schumacher, Enam Chowdhury
Proceedings Volume 8885, 88851U (2013) https://doi.org/10.1117/12.2030229
KEYWORDS: Photonic integrated circuits, Particles, Laser induced damage, Femtosecond phenomena, Electrons, Chemical species, Optical simulations, Copper, Picosecond phenomena, Ionization

Proceedings Article | 2 December 2010 Paper
Enam Chowdhury, Patrick Poole, Sheng Jiang, Brittany Taylor, Rebecca Daskalova, Linn Van Woerkom, Richard Freeman, Douglas Smith
Proceedings Volume 7842, 78421Y (2010) https://doi.org/10.1117/12.867023
KEYWORDS: Pulsed laser operation, Gold, Laser damage threshold, Optical components, Mirrors, High power lasers, Ultrafast phenomena, Diffraction gratings, Optical testing, Femtosecond phenomena

Showing 5 of 47 publications
Conference Committee Involvement (8)
Laser-Induced Damage in Optical Materials 2025
19 October 2025 | Rochester, NY, United States
Laser-Induced Damage in Optical Materials 2024
7 October 2024 | San Ramon, CA, United States
Laser-Induced Damage in Optical Materials 2023
18 September 2023 | Dublin/Livermore, California, United States
Laser-Induced Damage in Optical Materials 2022
18 September 2022 | Rochester, New York, United States
Laser-Induced Damage in Optical Materials 2021
12 October 2021 | Online Only, United States
Laser-induced Damage in Optical Materials 2020
14 September 2020 | Online Only, New York, United States
Laser-induced Damage in Optical Materials 2019
23 September 2019 | Broomfield (Boulder area), Colorado, United States
Laser-Induced Damage in Optical Materials 2018: 50th Anniversary Conference
24 September 2018 | Boulder, Colorado, United States
Showing 5 of 8 Conference Committees
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