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

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

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(-1) was investigated and...

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Veröffentlicht in:Review of scientific instruments 2015-02, Vol.86 (2), p.023111-023111
Hauptverfasser: Nguyen Ba, T, Triki, M, Desbrosses, G, Vicet, A
Format: Artikel
Sprache:eng
Schlagworte:
ABSORPTION
Absorptivity
Agronomy
APPLES
Biological properties
Continuous radiation
DETECTION
Electronics
Engineering Sciences
ETHYLENE
Feasibility studies
FEEDBACK
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
LASERS
Linearity
PHOTOACOUSTIC SPECTROSCOPY
QUANTUM WELLS
QUARTZ
Ripening
Scientific apparatus & instruments
Semiconductor lasers
SENSORS
Spectrum analysis
Stability analysis
TEMPERATURE RANGE 0273-0400 K
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Zusammenfassung: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(-1) was investigated and a normalized noise equivalent absorption coefficient (1σ) of 3.09 10(-7) cm(-1) W Hz(-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.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4913383