MQW laser diode photoacoustic detection of formaldehyde in 2.3 ?m spectral range
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F07%3A00347595" target="_blank" >RIV/61388955:_____/07:00347595 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
MQW laser diode photoacoustic detection of formaldehyde in 2.3 ?m spectral range
Original language description
The spectrum of formaldehyde was studied in the 4350 - 4361 cm-1 region using photoacoustic detection in combination with a semiconductor GalnAsSb/AlGaAsSb diode laser as a radiation source. This laser operates at laboratory and higher temperatures in the 4342 - 4362 cm-1 region with an output of about 1 mW. The spectrum of formaldehyde was measured photoacoustically and this was compared with other techniques, such as laser absorption in a single path 0.4 m long cell and Fourier transform spectroscopy.The dependence of the photoacoustic signal on the pressure of the measured gas was recorded. The same technique was employed to determine the detection limit (less than 0.1 ppmV) of formaldehyde diluted with nitrogen for the strongest absorption line inthe emission region of the diode laser.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/IAA4040104" target="_blank" >IAA4040104: Fast tunable MID-IR and IR diode laser spectrometer based on non-linear optical effects</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
ICTON Mediterranean Winter Conference, 2007. ICTON-MW 2007
ISBN
978-1-4244-1639-4
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
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Publisher name
The University of Sousse, Tunisia and the National Institute of Telecommunications with the IEEE/LEOS
Place of publication
Sousse
Event location
Sousse
Event date
Dec 6, 2007
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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