Quartz-enhanced photoacoustic spectroscopy sensor for ethylene detection with a 3.32 μm distributed feedback laser diode

Journal Article · Sun Feb 15 00:00:00 EST 2015 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4913383· OSTI ID:22392352

Nguyen Ba, T.; Triki, M.; Desbrosses, G. ^[1]

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1. LSTM, UMR 113, IRD, CIRAD, UM2, SupAgro, Université Montpellier 2, Place E. Baaillon, F-34095 Montpellier (France)

An antimonide distributed feedback quantum wells diode laser operating at 3.32 μm at near room temperature in the continuous wave regime has been used to perform ethylene detection based on quartz enhanced photoacoustic spectroscopy. An absorption line centered at 3007.52 cm{sup −1} was investigated and a normalized noise equivalent absorption coefficient (1σ) of 3.09 10{sup −7} cm{sup −1} W Hz{sup −1/2} was obtained. The linearity and the stability of the detection have been evaluated. Biological samples’ respiration has been measured to validate the feasibility of the detection setup in an agronomic environment, especially on ripening apples.

• OSTI ID: 22392352
• Journal Information: Review of Scientific Instruments, Vol. 86, Issue 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ABSORPTION
APPLES
DETECTION
ETHYLENE
FEEDBACK
LASERS
PHOTOACOUSTIC SPECTROSCOPY
QUANTUM WELLS
QUARTZ
SENSORS
TEMPERATURE RANGE 0273-0400 K