Dr. Mahmood Bagheri Profile

Dr. Mahmood Bagheri

at Jet Propulsion Lab

SPIE Involvement:

Author

Publications (17)

SPIE Journal Paper | 8 January 2025

Accordion effect: a consequence of polarized light in precision radial velocity spectrometers

Rose Gibson, Gautam Vasisht, Jason Fucik, Rebecca Oppenheimer, Mahmood Bagheri, Boqiang Shen, Stephanie Leifer, Kittrin Matthews, Charles Beichman, Thomas Lockhart, Bryson Lee Cale

JATIS, Vol. 11, Issue 01, 015001, (January 2025) https://doi.org/10.1117/12.10.1117/1.JATIS.11.1.015001

KEYWORDS: Polarization, Prisms, Spectrographs, Telescopes, Birefringence, Equipment, Point spread functions, Single mode fibers, Polarized light, Fabry Perot interferometers

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Proceedings Article | 28 August 2024 Poster

Poster

The performance of a microresonator-based etalon for radial velocity calibration

Gautam Vasisht, Yu-Hung Lai, Danny Eliyahu, Lute Maleki, Scott Singer, Mahmud Bagheri, Andrey Matsko, Dmitry Strekalov, Wei Zhang, Chas Beichman

Proceedings Volume 13100, 131005U (2024) https://doi.org/10.1117/12.3018472

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Proceedings Article | 5 October 2023 Presentation + Paper

Presentation + Paper

Dual purpose lyot coronagraph masks for simultaneous high-contrast imaging and high-resolution wavefront sensing

G. Ruane, J. K. Wallace, A. J. E. Riggs, T. Wenger, M. Bagheri, J. Jewell, N. Raouf, G. Allan, C. Mejia Prada, M. Noyes, A. Walter

Proceedings Volume 12680, 1268018 (2023) https://doi.org/10.1117/12.2676853

KEYWORDS: Wavefront sensors, Coronagraphy, Coating, Reflection, Aluminum, Design and modelling, Phase shifts, Cameras, Wavefronts, Manufacturing

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SPIE Journal Paper | 7 September 2023 Open Access

Open Access

Commissioning observations of HD 189733 with the PAlomar Radial Velocity Instrument

Bryson L. Cale, Aurora Kesseli, Charles Beichman, Gautam Vasisht, Rose Gibson, Rebecca Oppenheimer, Jason Fucik, Dimitri Mawet, Christopher Paine, Kittrin Matthews, Thomas Lockhart, Samuel Halverson, Boqiang Shen, Mahmood Bagheri, Stephanie Leifer, Peter Plavchan, David Hover

JATIS, Vol. 9, Issue 03, 038006, (September 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.3.038006

KEYWORDS: Signal detection, Spectral resolution, Spectrographs, Point spread functions, Single mode fibers, Doppler effect, Planets, Telescopes, Equipment, Exoplanets

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Proceedings Article | 12 July 2023 Open Access

Open Access

Paper

All-semiconductor continuous-wave volumetric ranging for spaceborne differential absorption lidar

Simone Bianconi, John Dykema, Eric Kittlaus, Mahmood Bagheri, Siamak Forouhar

Proceedings Volume 12777, 127772S (2023) https://doi.org/10.1117/12.2690302

KEYWORDS: Ranging, Backscatter, Tunable filters, LIDAR, Equipment, Continuous wave operation, Modulation, Profiling, Optical filters, Transmitters

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Proceedings Article | 15 March 2023 Presentation + Paper

Presentation + Paper

Progress in passively mode-locked interband cascade laser frequency combs for on-chip mid-infrared spectroscopy

M. Povolotskyi, A. Grede, C. Canedy, M. Kim, C. Kim, C. Merritt, W. Bewley, L. Sterczewski, M. Bagheri, C. Frez, J. Meyer, I. Vurgaftman

Proceedings Volume 12430, 1243004 (2023) https://doi.org/10.1117/12.2649052

KEYWORDS: Dispersion, Mode locking, Quantum cascade lasers, Frequency combs, Gallium antimonide, Mid-IR, Waveguides, Design and modelling, Spectroscopy, Simulations

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Proceedings Article | 29 August 2022 Poster

Poster

Achieving 1 m/s instrument radial velocity stability with the Palomar Radial Velocity Instrument

Rose Gibson, Gautam Vasisht, Rebecca Oppenheimer, Chalres Beichman, Stephanie Leifer, Jason Fucik, Christopher Paine, Mahmood Bagheri, Bryson Cale

Proceedings Volume 12184, 121845C (2022) https://doi.org/10.1117/12.2644698

KEYWORDS: Near infrared, Stars, Single mode fibers, Motion measurement, Frequency combs, Telescopes, Spectroscopy, Spectrographs, Spectral resolution, Signal detection

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Proceedings Article | 5 March 2021 Presentation + Paper

Presentation + Paper

Waveguiding and dispersion properties of interband cascade laser frequency combs

L. Sterczewski, M. Bagheri, C. Frez, C. Canedy, I. Vurgaftman, M. Kim, C. S. Kim, C. Merritt, W. Bewley, J. Faist, G. Wysocki, J. Meyer

Proceedings Volume 11705, 1170519 (2021) https://doi.org/10.1117/12.2578904

KEYWORDS: Dispersion, Quantum cascade lasers, Frequency combs, Gallium antimonide, Spectroscopy, Spectrometers, Semiconductor lasers, Refractive index, Photodetectors, Mode locking

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Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

A microresonator-based etalon for visible light precision radial velocity measurements

Stephanie Leifer, Anatoliy Savchenkov, Abdelkrim El Amili, Charles Beichman, Andrey Matsko, Yu-Hung Lai, Stuart Love, Dmitri Strekalov, Christian Schwab, Lute Maleki, Samuel Halverson, Ian Coddington, Mahmood Bagheri

Proceedings Volume 11447, 114471L (2020) https://doi.org/10.1117/12.2562369

KEYWORDS: Fabry–Perot interferometers, Visible radiation, Velocity measurements, Calibration, Spectral calibration, Magnesium fluoride, Microresonators, Ceramics, Composites, Resonators

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Proceedings Article | 27 April 2020 Presentation

Presentation

Interband cascade laser frequency combs for spectroscopic sensing (Conference Presentation)

Lukasz Sterczewski, Mahmood Bagheri, Clifford Frez, Chadwick Canedy, Igor Vurgaftman, Mijin Kim, Chul Soo Kim, Charles Merritt, William Bewley, Jerry Meyer, Chu Teng, Gerard Wysocki

Proceedings Volume 11390, 1139012 (2020) https://doi.org/10.1117/12.2559308

KEYWORDS: Quantum cascade lasers, Frequency combs, Spectroscopy, Mid-IR, Sensors, Photodetectors, Infrared radiation, Photons, Chemical fiber sensors, Microresonators

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Proceedings Article | 24 February 2020 Presentation + Paper

Presentation + Paper

Frequency comb interband cascade laser stabilization by time-delayed optical self-injection

Dominik Auth, Mahmood Bagheri, Clifford Frez, Chadwick Canedy, Igor Vurgaftman, Jerry Meyer, Stefan Breuer

Proceedings Volume 11301, 113011B (2020) https://doi.org/10.1117/12.2547154

KEYWORDS: Ion beam finishing, Frequency combs, Quantum cascade lasers, Laser optics, Radio optics, Mode locking, Picosecond phenomena, Laser stabilization, Spectroscopy, Spectrum analysis

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Proceedings Article | 8 October 2019 Presentation + Paper

Presentation + Paper

Passively mode-locked interband cascade lasers

Mahmood Bagheri, Clifford Frez, Igor Vurgaftman, Jonas Westberg, Lukasz Sterczewski, Mathieu Fradet, Ivan Grudinin, Chadwick Canedy, William Bewley, Charles Merritt, Chul Soo Kim, Jerry Meyer, Gerard Wysocki

Proceedings Volume 10939, 1093919 (2019) https://doi.org/10.1117/12.2510060

KEYWORDS: Mode locking, Quantum cascade lasers, Quantum wells, Ions, Semiconductor lasers, Mid-IR, Absorption, Electrons, Laser resonators, Frequency combs

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Proceedings Article | 12 July 2019 Open Access

Open Access

Paper

2.0 micron wavelength injection seed semiconductor laser for lidar transmitter for global-scale measurements of CO2

Siamak Forouhar, Ryan Briggs, Mahmood Bagheri, Clifford Frez, Mathieu Fradet

Proceedings Volume 11180, 111800U (2019) https://doi.org/10.1117/12.2535949

KEYWORDS: Semiconductor lasers, Fabry–Perot interferometers, LIDAR, Transmitters, Continuous wave operation, Waveguides, Carbon dioxide lasers, Carbon dioxide, Absorption, High power lasers

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Proceedings Article | 18 September 2018 Presentation + Paper

Presentation + Paper

The Lunar Flashlight CubeSat instrument: a compact SWIR laser reflectometer to quantify and map water ice on the surface of the moon

Udo Wehmeier, Quentin Vinckier, R. Glenn Sellar, Christopher Paine, Paul Hayne, Mahmood Bagheri, Mina Rais-Zadeh, Siamak Forouhar, Jessica Loveland, Jacob Shelton

Proceedings Volume 10769, 107690H (2018) https://doi.org/10.1117/12.2320643

KEYWORDS: Receivers, Sensors, Electronics, Space operations, Signal to noise ratio, Reflectometry, Mirrors, Short wave infrared radiation

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Proceedings Article | 27 February 2015 Paper

Paper

Efficient high NA flat micro-lenses realized using high contrast transmitarrays

Amir Arbabi, Yu Horie, Alexander Ball, Mahmood Bagheri, Andrei Faraon

Proceedings Volume 9372, 93720P (2015) https://doi.org/10.1117/12.2079509

KEYWORDS: Silica, Photomasks, Mirrors, Magnetism, Photodetectors, Near infrared, Wavefronts, Plasmonics, Scattering, Diffraction

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Proceedings Article | 27 February 2015 Paper

Paper

Highly efficient polarization control using subwavelength high contrast transmitarrays

Amir Arbabi, Yu Horie, Mahmood Bagheri, Andrei Faraon

Proceedings Volume 9372, 93720H (2015) https://doi.org/10.1117/12.2079559

KEYWORDS: Wave plates, Polarization, Dielectric polarization, Polarizers, Polarization control, Wavefronts, Cameras, Amorphous silicon, Refractive index, Scanning electron microscopy

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Proceedings Article | 3 June 2005 Paper

Paper

Photonic crystal devices

J. O'Brien, W. Kuang, M.-H. Shih, M. Bagheri, J. Cao, S. Choi, P. Dapkus

Proceedings Volume 5825, (2005) https://doi.org/10.1117/12.611348

KEYWORDS: Waveguides, Photonic crystals, Laser crystals, Sapphire, Continuous wave operation, Reflectivity, Semiconductor lasers, Laser resonators, Optical microcavities, Modulation

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Showing 5 of 17 publications

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