Dr. David A. Long is a research chemist in the Material Measurement Laboratory at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD. His research applies cutting-edge spectroscopic techniques to present problems in atmospheric science and remote sensing. Techniques currently utilized in the laboratory include frequency-stabilized cavity ring-down spectroscopy (FS-CRDS), photoacoustic spectroscopy (PAS), and the use of an octave-spanning self-referenced optical frequency comb as an absolute frequency reference. Currently he is focusing upon the development of novel cavity-enhanced techniques as well as studying line shape effects in near-infrared CO2 and O2 transitions with implications for present greenhouse gas monitoring satellite missions. He is a member of the Orbiting Carbon Observatory (OCO-2) Science Team, the American Chemical Society, and the American Geophysical Union. Much of this work is performed in collaboration with Dr. Joseph Hodges (MML).
Through the support of an Innovation Measurement Science grant I will be starting a new program which will develop new instrumentation for trace gas sensing in the mid-infrared. These developments should lead to new tools for studying atmospheric dynamics and chemical kinetics. Initially, I will be focusing upon measurements of rare isotopes, including carbon-14. I have openings for a few post-doctoral researchers. If interested please contact me via email.
- Molecular spectroscopy
- Instrument development
- Cavity-enhanced techniques
- Optical frequency combs
- Remote sensing
- Greenhouse gas monitoring
- Atmospheric chemistry
- National Science Foundation Graduate Fellowship (2007)
- National Defense Science and Engineering Fellowship (2007)
- USA Today All-College Team Honorable Mention (2007)
- Finalist for the Rhodes and Marshall Fellowships (2007)
- Graduated as valedictorian and summa cum laude from Kenyon College (2007)
- Morris K. Udall Scholarship (2006)
- Barry M. Goldwater Scholarship (2005)