pin Chen                                                                                                

scientist                                                                                                                                                             

      

Education

Ph.D., Chemical Physics, California Institute of Technology (1999). 

B.S., Chemistry, University of California, Berkeley (1991). 

Research Interests

·      Development of instrumentation for stable-isotope analysis of atmospheric molecules using near-infrared diode lasers and cavity-enhanced spectroscopy. 

·      High-resolution, far-infrared and submillimeter molecular spectroscopy. 

·      Development of narrow-linewidth, frequency-calibrated terahertz sources based on semiconductor photomixers. 

·      Balloon-borne remote sensing of stratospheric OH.

Professional Experience

Jet Propulsion Laboratory (11/2000 – present)

Scientist

Earth and Space Sciences Division. 

National Institute of Standards and Technology (2/1999 – 10/2000)

Research Chemist (funded by National Research Council’s Postdoctoral Research Associateship Program) Time and Frequency Division.  

Selected Awards

National Research Council’s Postdoctoral Research Associateship (2/1999 – 10/2000).

NASA New Technology Reporting Award for Tunable Terahertz Source Using Near Infrared Diode Lasers (NPO-20636, 1/1999). 

Recent Projects

JPL Research and Technology Development Program:  A Promising New Near-Infrared Laser Technique for In-Situ Mars Exploration.

NASA Earth Science New Investigators Program:  Tropospheric Monitoring of CO Isotopes by Cavity-Enhanced, Optical Heterodyne Spectroscopy.  

NASA Space Astrophysics Research and Analysis Program:  A Traveling-Wave Photomixer for Broad-Band Submillimeter Heterodyne Receivers.   

 

Professional Activities

Member:  American Geophysical Union, Optical Society of America.   

Selected Publications & Presentations

 

“NH3 and PH3 line parameters: the 2000 HITRAN update and new results.” I. Kleiner, G. Tarrago, C. Cottaz, L. Sagui L. R.  Brown, R. L.  Poynter, H. M. Pickett,  P. Chen, J. C. Pearson, R. L. Sams,  G. A. Blake, S. Matsuura, V. Nemtchinov, P. Varanasi, L. Fusina L, G. Di Lonardo, J. Quant. Spectrosc. Rad. Transfer 82 (1-4): 293-312, 2003.

 

*                     “A Mid-infrared Spectrometer for Stable-Isotope Analysis of Tropospheric Methane.” P. Chen, G. Garcia, L. Hollberg, M. Trudeau, P. Tans.  Meeting Abstract: American Geophysical Union Spring 2000 Meeting. 

*                      “Highly-Sensitive Detection of Methane in Air by Diode-pumped, Mid-Infrared, Difference-Frequency Generation in Quasi-Phase Matched LiNbO3.” G. Garcia, P. Chen and L. Hollberg.  Meeting Abstract:  16th Colloquium on High Resolution Molecular Spectroscopy, 1999. 

*                     “A Three-Diode-Laser, Terahertz-Difference-Frequency Synthesizer and Its Applications toward Far-Infrared Spectroscopy of Ammonia and Water.” Pin Chen, J. C. Pearson, H. M. Pickett, S. Matsuura and G. A. Blake.  Trends in Optics and Photonics:  Advanced Semiconductor Lasers and Their Applications, 31, 103-105, 2000. 

*                     “Submillimeter-Wave Measurements and Analysis of the Ground and n2 = 1 States of Water.”  Pin Chen, J. C. Pearson, Herbert M. Pickett, Shuji Matsuura and Geoffrey A. Blake.  Astrophysical Journal Supplement Series, 128, 371-385, 2000. 

*                     “A Tunable, Cavity-Locked Diode Laser Source for Terahertz Photomixing.”  S. Matsuura, Pin Chen, Geoffrey A. Blake, J. C. Pearson and H. M. Pickett.  IEEE Transaction on Microwave Theory and Techniques, 48 (3), 380-387, 2000. 

*                     “Simultaneous Amplification of Terahertz difference Frequencies by an Injection-Seeded Semiconductor Laser Amplifier at 850 nm.”  S. Matsuura, Pin Chen, Geoffrey A. Blake, J. C. Pearson and H. M. Pickett.  International Journal of Infrared and Millimeter Waves, 19 (6), 849-858, 1998. 

*                     “Spectroscopic Applications and Frequency Locking of THz Photomixing with Distributed-Bragg-Reflector Diode Lasers in Low-Temperature-Grown GaAs.”  Pin Chen, Geoffrey A. Blake, M. C. Gaidis, E. R. Brown, K. A. McIntosh, S. Y. Chou, M. I. Nathan and F. Williamson. Applied Physics Letters, 71 (12), 1601-1603, 1997. 

*                     “Laser Spectroscopy and Diagnostics of H- Ion Source Plasmas.”  A. T. Young, P. Chen, K. N. Leung, L. Pan, D. Ponce, and G. C. Stutzin, Review of Scientific Instruments, 65 (4), 1416-1418, 1994. 

“Measurement of Atomic and Molecular-Hydrogen in a Tandem Magnetic Multicusp H- Ion-Source by VUV Spectroscopy.” A. T. Young, G. C. Stutzin, P. Chen, W. B. Kunkel, K. N. Leung, Review of Scientific Instruments. 63 (4), 2744-2746, 1992.