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Opportunity at National Institute of Standards and Technology (NIST)

Ultra-Sensitive Molecular Spectroscopy for Applications in Atmospheric Chemistry

Location

Material Measurement Laboratory, Chemical Sciences Division

RO# Location
50.64.61.B8325 Gaithersburg, MD

Please note: This Agency only participates in the February and August reviews.

Advisers

Name E-mail Phone
Fleisher, Adam J adam.fleisher@nist.gov 301.975.4864
Hodges, Joseph Terence jhodges@nist.gov 301.975.2605
Long, David A david.long@nist.gov 301.975.3298

Description

We develop new ultra-sensitive cavity-enhanced spectroscopic methods to address existing measurement needs in atmospheric and climate science. These methods involve laser sources, such as quantum cascade lasers and optical frequency combs to make high accuracy measurements of trace materials and for quantitative measurements of line shape parameters to support remote sensing. Recently, we have been developing an optical cavity ring-down spectrometer to probe radiocarbon dioxide (14CO2) transitions in the mid-infrared spectral region for greenhouse gas and fuel source attribution.

 

References

Truong GW, et al: "Frequency-agile, rapid scanning spectroscopy." Nature Photonics 7: 532, 2013

Long DA, et al: "Multiheterodyne spectroscopy with optical frequency combs generated from a continuous-wave laser." Optics Letters 39: 2688, 2014

 

Keywords:
Spectroscopy; Laser; Optical frequency comb; Atmospheric chemistry; Remote sensing; Instrument development; Physical chemistry; Optics; Chemical physics;

Eligibility

Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral applicants
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