Dr. Matthew W. Muterspaugh Profile

Dr. Matthew W. Muterspaugh

Associate Professor at Tennessee State Univ

SPIE Involvement:

Author

Publications (19)

Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

Many interesting things are afoot at the Navy Precision Optical Interferometer

G. van Belle, J. Armstrong, J. Benson, E. Baines, J. Clark, R. Hindsley, S. Restaino, H. Schmitt, A. Lindgren, S. Pooler, R. Zavala, T. Buschmann, A. Jorgensen, D. Mozurkewich, J. Hall, P. Shankland, R. Bevilacqua, W. DeGroff, M. Muterspaugh

Proceedings Volume 10701, 1070105 (2018) https://doi.org/10.1117/12.2314204

KEYWORDS: Telescopes, Interferometers, Mirrors, Electron multiplying charge coupled devices, Observatories, Avalanche photodetectors, Precision optics, Interferometry, Beam splitters

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SPIE Journal Paper | 2 December 2016 Open Access

Open Access

High-resolution broadband spectroscopy using externally dispersed interferometry at the Hale telescope: part 2, photon noise theory

David Erskine, Jerry Edelstein, Edward Wishnow, Martin Sirk, Philip Muirhead, Matthew Muterspaugh, James Lloyd

JATIS, Vol. 2, Issue 04, 045001, (December 2016) https://doi.org/10.1117/12.10.1117/1.JATIS.2.4.045001

KEYWORDS: Signal to noise ratio, Spectrographs, Interference (communication), Interferometry, Point spread functions, Interferometers, Spectroscopes, Sensors, Image resolution, Fourier transforms

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High-resolution broadband spectroscopy at near-infrared (NIR) wavelengths (950 to 2450 nm) has been performed using externally dispersed interferometry (EDI) at the Hale telescope at Mt. Palomar, with the TEDI interferometer mounted within the central hole of the 200-in. primary mirror in series with the comounted TripleSpec NIR echelle spectrograph. These are the first multidelay EDI demonstrations on starlight. We demonstrated very high (10×) resolution boost and dramatic (20× or more) robustness to point spread function wavelength drifts in the native spectrograph. Data analysis, results, and instrument noise are described in a companion paper (part 1). This part 2 describes theoretical photon limited and readout noise limited behaviors, using simulated spectra and instrument model with noise added at the detector. We show that a single interferometer delay can be used to reduce the high frequency noise at the original resolution (1× boost case), and that except for delays much smaller than the native response peak half width, the fringing and nonfringing noises act uncorrelated and add in quadrature. This is due to the frequency shifting of the noise due to the heterodyning effect. We find a sum rule for the noise variance for multiple delays. The multiple delay EDI using a Gaussian distribution of exposure times has noise-to-signal ratio for photon-limited noise similar to a classical spectrograph with reduced slitwidth and reduced flux, proportional to the square root of resolution boost achieved, but without the focal spot limitation and pixel spacing Nyquist limitations. At low boost (∼1×) EDI has ∼1.4× smaller noise than conventional, and at >10× boost, EDI has ∼1.4× larger noise than conventional. Readout noise is minimized by the use of three or four steps instead of 10 of TEDI. Net noise grows as step phases change from symmetrical arrangement with wavenumber across the band. For three (or four) steps, we calculate a multiplicative bandwidth of 1.8:1 (2.3:1), sufficient to handle the visible band (400 to 700 nm, 1.8:1) and most of TripleSpec (2.6:1).

Proceedings Article | 9 August 2016 Paper

Paper

On-sky Doppler performance of TOU optical very high-resolution spectrograph for detecting low-mass planets

Jian Ge, Bo Ma, Scott Powell, Frank Varosi, Michael Singer, Michael Williamson, Matthew Muterspaugh, Bo Zhao, Sidney Schofield, Jian Liu, Sirinrat Sithajan, Nolan Grieves, Anthony Cassette, Louis Avner, Hali Jakeman, Rory Barnes

Proceedings Volume 9908, 99086I (2016) https://doi.org/10.1117/12.2232217

KEYWORDS: Planets, Doppler effect, Spectrographs, Robotics, Telescopes, Stars, Calibration, Double positive medium, Neptune, Space telescopes

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SPIE Journal Paper | 27 May 2016 Open Access

Open Access

High-resolution broadband spectroscopy using externally dispersed interferometry at the Hale telescope: Part 1, data analysis and results

David Erskine, Jerry Edelstein, Edward Wishnow, Martin Sirk, Philip Muirhead, Matthew Muterspaugh, James Lloyd, Yuzo Ishikawa, Eliza McDonald, William Shourt, Andrew Vanderburg

JATIS, Vol. 2, Issue 02, 025004, (May 2016) https://doi.org/10.1117/12.10.1117/1.JATIS.2.2.025004

KEYWORDS: Spectrographs, Point spread functions, Stars, Fabry–Perot interferometers, Interferometry, Spectroscopes, Interferometers, Lamps, Modulation transfer functions, Wavelets

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Proceedings Article | 28 July 2014 Paper

Paper

A robotic, compact, and extremely high resolution optical spectrograph for a close-in super-Earth survey

Jian Ge, Scott Powell, Bo Zhao, Frank Varosi, Jian Liu, Rui Li, Nolan Grieves, Sidney Schofield, Louis Avner, Hali Jakeman, William Yoder, Jakob Gittelmacher, Michael Singer, Matthew Muterspaugh, Michael Williamson, J. Maxwell, Bo Ma, Sirinrat Sithajan

Proceedings Volume 9147, 914786 (2014) https://doi.org/10.1117/12.2056970

KEYWORDS: Planets, Stars, Spectrographs, Calibration, Optical fibers, Doppler effect, Spectral resolution, Telescopes, Robotics, Optical resolution

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Proceedings Article | 24 July 2014 Paper

Paper

Multi-baseline bootstrapping at the Navy precision optical interferometer

J. Armstrong, H. Schmitt, E. Baines, J. Benson, Robert Zavala, D. Hutter, A. Jorgensen, M. Muterspaugh, D. Mozurkewich

Proceedings Volume 9146, 91460K (2014) https://doi.org/10.1117/12.2055209

KEYWORDS: Signal to noise ratio, Stars, Precision optics, Interferometers, Observatories, Chemical elements, Ocean optics, Interferometry, Sensors, Electronics

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Proceedings Article | 8 July 2014 Paper

Paper

On-sky performance of a high resolution silicon immersion grating spectrometer

Jian Ge, Scott Powell, Bo Zhao, Sidney Schofield, Frank Varosi, Craig Warner, Jian Liu, Sirinrat Sithajan, Louis Avner, Hali Jakeman, Jakob Gittelmacher, William Yoder, Matthew Muterspaugh, Michael Williamson, J. Maxwell

Proceedings Volume 9147, 91471A (2014) https://doi.org/10.1117/12.2057023

KEYWORDS: Planets, Stars, Near infrared, Infrared spectroscopy, Spectroscopy, Spectrographs, Telescopes, Sensors, Optical fibers, Silicon

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Proceedings Article | 24 September 2012 Paper

Paper

High resolution Florida IR silicon immersion grating spectrometer and an M dwarf planet survey

Sidney Schofield, Bo Zhao, Rory Barnes, Cullen Blake, Scott Powell, Matthew Muterspaugh, Adam Fletcher, Ji Wang, Jian Ge, Jian Liu

Proceedings Volume 8446, 84463O (2012) https://doi.org/10.1117/12.925788

KEYWORDS: Planets, Stars, Near infrared, Calibration, Infrared spectroscopy, Spectrographs, Silicon, Sensors, Telescopes, Exoplanets

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We report the system design and predicted performance of the Florida IR Silicon immersion grating spectromeTer (FIRST). This new generation cryogenic IR spectrograph offers broad-band high resolution IR spectroscopy with R=72,000 at 1.4-1.8 μm and R=60,000 at 0.8-1.35 μm in a single exposure with a 2kx2k H2RG IR array. It is enabled by a compact design using an extremely high dispersion silicon immersion grating (SIG) and an R4 echelle with a 50 mm diameter pupil in combination with an Image Slicer. This instrument is operated in vacuum with temperature precisely controlled to reach long term stability for high precision radial velocity (RV) measurements of nearby stars, especially M dwarfs and young stars. The primary technical goal is to reach better than 4 m/s long term RV precision with J<9 M dwarfs within 30 min exposures. This instrument is scheduled to be commissioned at the Tennessee State University (TSU) 2-m Automatic Spectroscopic Telescope (AST) at Fairborn Observatory in spring 2013. FIRST can also be used for observing transiting planets, young stellar objects (YSOs), magnetic fields, binaries, brown dwarfs (BDs), ISM and stars. We plan to launch the FIRST NIR M dwarf planet survey in 2014 after FIRST is commissioned at the AST. This NIR M dwarf survey is the first large-scale NIR high precision Doppler survey dedicated to detecting and characterizing planets around 215 nearby M dwarfs with J< 10. Our primary science goal is to look for habitable Super-Earths around the late M dwarfs and also to identify transiting systems for follow-up observations with JWST to measure the planetary atmospheric compositions and study their habitability. Our secondary science goal is to detect and characterize a large number of planets around M dwarfs to understand the statistics of planet populations around these low mass stars and constrain planet formation and evolution models. Our survey baseline is expected to detect ~30 exoplanets, including 10 Super Earths, within 100 day periods. About half of the Super-Earths are in their habitable zones and one of them may be a transiting planet. The AST, with its robotic control and ease of switching between instruments (in seconds), enables great flexibility and efficiency, and enables an optimal strategy, in terms of schedule and cadence, for this NIR M dwarf planet survey.

Proceedings Article | 13 September 2012 Paper

Paper

A single-mode Echelle spectrograph: eliminating modal variation, enabling higher precision Doppler study

Michael Williamson, Matthew Muterspaugh, Askari Ghasempour, John Kelly

Proceedings Volume 8450, 845045 (2012) https://doi.org/10.1117/12.925031

KEYWORDS: Spectrographs, Telescopes, Doppler effect, Stars, Cameras, Sensors, Adaptive optics, Electroluminescent displays, Calibration, Space telescopes

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Proceedings Article | 12 September 2012 Paper

Paper

Building the next-generation science camera for the Navy Optical Interferometer

J. Monnier, D. Hutter, J. Armstrong, M. Muterspaugh, A. Ghasempour, S. Fall, C. Sergeyous, M. Williamson, C. Harrison, J. Benson

Proceedings Volume 8445, 84450M (2012) https://doi.org/10.1117/12.924995

KEYWORDS: Cameras, Polarization, Telescopes, Stars, Interferometers, Visibility, Optical fibers, Sensors, Imaging systems, Spectrographs

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Proceedings Article | 15 September 2011 Paper

Paper

Ten-fold spectral resolution boosting using TEDI at the Mt. Palomar NIR Triplespec spectrograph

M. Sirk, D. Mondo, P. Andelson, K. Covey, P. Muirhead, A. Vanderburg, D. Kimber, David Erskine, J. Lloyd, J. Edelstein, M. Muterspaugh

Proceedings Volume 8146, 81460M (2011) https://doi.org/10.1117/12.892664

KEYWORDS: Spectrographs, Interferometers, Modulation transfer functions, Intelligence systems, Fourier transforms, Spectral resolution, Data modeling, Interferometry, Doppler effect, Spectroscopy

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Proceedings Article | 21 July 2010 Paper

Paper

Precise infrared radial velocimetry with the Triplespec Exoplanet Discovery Instrument: current performance and results

Jason Wright, Samuel Halverson, Daniel Mondo, Philip Muirhead, Kevin Covey, David Erskine, Matthew Muterspaugh, Jerry Edelstein, James Lloyd, Mario Marckwordt

Proceedings Volume 7735, 77357X (2010) https://doi.org/10.1117/12.857196

KEYWORDS: Interferometers, Stars, Doppler effect, Exoplanets, Spectrographs, Telescopes, Modulation, Krypton, Velocity measurements, Device simulation

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Proceedings Article | 21 July 2010 Paper

Paper

Infrared radial velocimetry with TEDI: performance development

Matthew Muterspaugh, Samuel Halverson, Philip Muirhead, James Lloyd, Mario Marckwordt, David Erskine, Kevin Covey, Jason Wright, Jerry Edelstein, Daniel Mondo

Proceedings Volume 7735, 773583 (2010) https://doi.org/10.1117/12.858312

KEYWORDS: Interferometers, Telescopes, Optical fibers, Spectrographs, Dispersion, Stars, Mirrors, Infrared radiation, Target acquisition, Interferometry

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Proceedings Article | 9 July 2008 Paper

Paper

Dispersed interferometry for infrared exoplanet velocimetry

Tony Mercer, Sam Halverson, Jason Wright, Jaclyn Schwer, Philip Muirhead, James Lloyd, Jerry Edelstein, Matthew Muterspaugh, David Erskine, Terry Herter, Mario Marckwordt, Agnieszka Czeszumska, W. Michael Feuerstein

Proceedings Volume 7014, 70147F (2008) https://doi.org/10.1117/12.790315

KEYWORDS: Stars, Planets, Spectrographs, Interferometry, Exoplanets, Doppler effect, Velocity measurements, Velocimetry, Infrared radiation, Interferometers

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Proceedings Article | 4 October 2007 Paper

Paper

TEDI: the TripleSpec Exoplanet Discovery Instrument

Jerry Edelstein, Terry Herter, W. Michael Feuerstein, David Erskine, Stephen Parshley, Mario Marckwordt, George Gull, Ed Wishnow, Charles Henderson, Phillip Muirhead, James Lloyd, Matthew Ward Muterspaugh

Proceedings Volume 6693, 66930W (2007) https://doi.org/10.1117/12.735474

KEYWORDS: Spectrographs, Stars, Interferometers, Absorption, Telescopes, Doppler effect, Exoplanets, Planets, Calibration, Mirrors

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Proceedings Article | 28 June 2006 Paper

Paper

Interferometric observations of explosive variables: V838 Mon, Nova Aql 2005, and RS Oph

Benjamin Lane, Robert Thompson, Alon Retter, Matthew Muterspaugh, Joshua Eisner

Proceedings Volume 6268, 62681K (2006) https://doi.org/10.1117/12.674431

KEYWORDS: Visibility, Data modeling, Remote sensing, Stars, Explosives, Interferometry, Interferometers, Calibration, K band, Binary data

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Proceedings Article | 27 June 2006 Paper

Paper

Scientific results from high-precision astrometry at the Palomar Testbed Interferometer

M. Shao, Maciej Konacki, M. Colavita, S. Kulkarni, B. Burke, Benjamin Lane, Matthew Muterspaugh

Proceedings Volume 6268, 62680F (2006) https://doi.org/10.1117/12.670688

KEYWORDS: Stars, Planets, Interferometers, Visualization, Telescopes, Exoplanets, Interferometry, Phase measurement, Physics, Astronomy

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Proceedings Article | 20 October 2004 Paper

Paper

Initial scientific results from phase-referenced astrometry of sub-arcsecond binaries

Shri Kulkarni, Bernard Burke, Benjamin Lane, Maciej Konacki, Matthew Muterspaugh

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551980

KEYWORDS: Stars, Motion models, Interferometers, Data modeling, Spectroscopy, Atmospheric optics, Interferometry, Binary data, 3D modeling, Visualization

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Proceedings Article | 20 October 2004 Paper

Paper

Phase referencing and narrow-angle astrometry in current and future interferometers

Benjamin Lane, Matthew Muterspaugh

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.549440

KEYWORDS: Interferometers, Stars, Planets, Atmospheric turbulence, Interferometry, Binary data, Phase interferometry, Sensors, Adaptive optics, Motion measurement

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Showing 5 of 19 publications

Conference Committee Involvement (1)

Optical and Infrared Interferometry IV

23 June 2014 | Montréal, Quebec, Canada

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