Measurement of formaldehyde H{sub 2}CO concentration in air using diode vertical-cavity lasers

Journal Article · Mon Jan 31 00:00:00 EST 2011 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2011V041N01ABEH014450· OSTI ID:21541803

Zaslavskii, V Ya; Nadezhdinskii, Aleksandr I; Ponurovskii, Ya Ya; Chernin, S M ^[1]

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1. A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

A two-channel gas-analysing spectrometer is developed using a vertical-cavity surface-emitting laser (VCSEL) ({lambda}=1.79 {mu}m) and a multi-pass cell (total optical length 39 m) for studying the absorption spectra and measuring the background concentration of formaldehyde. High-resolution absorption spectra of formaldehyde are obtained within the VCSEL frequency tuning range ({lambda} {approx}1.79 {mu}m). Changing the background concentration of H{sub 2}CO, the sensitivity limit of the gas analyser is estimated. (laser applications)

• OSTI ID: 21541803
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 41, Issue 1; Other Information: DOI: 10.1070/QE2011v041n01ABEH014450; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTRA
FORMALDEHYDE
GAS ANALYSIS
LASER CAVITIES
LASERS
SPECTROMETERS
ALDEHYDES
MEASURING INSTRUMENTS
ORGANIC COMPOUNDS
SPECTRA