Jay E. Fahlen is a Research Technologist with the Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA. His research interests include video processing, computational plasma physics, signal processing for both radar and imaging spectrometers, and greenhouse gas detection and quantification methods using remote imaging spectroscopy.

B.S., University of California, Los Angeles, Spring 2001

M.S., University of California, Los Angeles, Spring 2005

Ph.D., Electrical Engineering, University of California, Los Angeles, Spring 2010

• Earth Science  | Carbon Cycle And Greenhouse Gasses, Including Monitoring And Mitigation
• Sensors, Microdevices and Instruments  | Observatory Technologies
• Sensors, Microdevices and Instruments  | Remote/In Situ/Life Detection Instruments And Sensors
• Artificial Intelligence, Machine Learning, and Data Science  | Supervised And Unsupervised Learning

• Imaging Spectroscopy  
• Signal Processing  
• Image Processing  
• Greenhouse Gases  

• UCLA Image Processing Lab, Researcher, 2000-2002
• Center for Global Security Research at Lawrence Livermore National Laboratory, Internship, Summer 2005
• UCLA Plasma Simulation Group, Graduate Student, 2002-2010
• Arete Associates, Senior Scientist, 2010-2018
• JPL, Technologist, 2018-Present

J. E. Fahlen et al., "Sensitivity and Uncertainty in Matched-Filter-Based Gas Detection With Imaging Spectroscopy," in IEEE Transactions on Geoscience and Remote Sensing, vol. 62, pp. 1-10, 2024, Art no. 5526210, doi: 10.1109/TGRS.2024.3440174.

Regina Eckert, Steffen Mauceri, David R. Thompson, Jay E. Fahlen, Philip G. Brodrick, "Spatially constrained atmosphere and surface retrieval for imaging spectroscopy," Remote Sensing of Environment 300, 2024, 113902, ISSN 0034-4257, https://doi.org/10.1016/j.rse.2023.113902.

Andrew K. Thorpe et al., Attribution of individual methane and carbon dioxide emission sources using EMIT observations from space. Science Advances 9, eadh2391 (2023).DOI:10.1126/sciadv.adh2391

Philip G. Brodrick, David R. Thompson, Jay E. Fahlen, Michael L. Eastwood, Charles M. Sarture, Sarah R. Lundeen, Winston Olson-Duvall, Nimrod Carmon, Robert O. Green, "Generalized radiative transfer emulation for imaging spectroscopy reflectance retrievals," Remote Sensing of Environment, 261, 2021, 112476, ISSN 0034-4257, https://doi.org/10.1016/j.rse.2021.112476.

Jay E. Fahlen, Philip G. Brodrick, David R. Thompson, Robert L. Herman, Glynn Hulley, Kerry Cawse-Nicholson, Robert O. Green, Joseph J. Green, Simon J. Hook, Charles E. Miller, Joint VSWIR-TIR retrievals of earth's surface and atmosphere, Remote Sensing of Environment, 267, 2021, 112727, ISSN 0034-4257, https://doi.org/10.1016/j.rse.2021.112727.

Winjum BJ, Fahlen JE, Tsung FS, Mori WB. "Anomalously hot electrons due to rescatter of stimulated Raman scattering in the kinetic regime." Physical Review Letters. 110: 165001 (2013)

Ellis IN, Strozzi DJ, Winjum BJ, Tsung FS, Grismayer T, Mori WB, Fahlen JE, Williams EA. "Convective Raman amplification of light pulses causing kinetic inflation in inertial fusion plasmas." Physics of Plasmas. 19 (2012).

Fahlen JE, Winjum BJ, Grismayer T, Mori WB. "Transverse plasma-wave localization in multiple dimensions." Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics. 83: 045401 (2011).

Grismayer T, Fahlen JE, Decyk VK, Mori WB. "On the time-dependent resonant width for Landau damping: Theory and PIC simulation." Plasma Physics and Controlled Fusion. 53 (2011).

Winjum BJ, Fahlen JE, Tsung FS, Mori WB. "Effects of plasma wave packets and local pump depletion in stimulated Raman scattering." Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics. 81: 045401 (2010).

Fahlen JE, Winjum BJ, Grismayer T, Mori WB. "Propagation and damping of nonlinear plasma wave packets." Physical Review Letters. 102: 245002 (2009)

Kim L, Lyles BF, Fahlen J. "A return to atoms for peace: Provision of an experimental compact liquid metal fast reactor to North Korea." Journal of Nuclear Materials Management. 36: 35-40 (2008)

Winjum BJ, Fahlen J, Mori WB. "The relative importance of fluid and kinetic frequency shifts of an electron plasma wave." Physics of Plasmas. 14 (2007)