Small-size resonant photoacoustic cell with reduced window background for laser detection of gases

Autor:	V. S. Starovoitov, A. V. Gorelik
Rok vydání:	2009
Předmět:	Photoacoustic effect Materials science business.industry Laser Signal Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Optics Volume (thermodynamics) law Cell cavity Photonics business Absorption (electromagnetic radiation) Line (formation)
Zdroj:	Optics and Spectroscopy. 107:830-835
ISSN:	1562-6911 0030-400X
DOI:	10.1134/s0030400x0911023x
Popis:	A photoacoustic resonant cell with the inner volume is ∼0.5 cm3 is presented. The shape of the cell cavity is chosen such as to minimize a background signal arising due to the absorption of laser beam in the cell windows. The experimental setup, the measurement procedure, and the design of the cell are described. The results of detecting ammonia in a nitrogen flow using the R(30) oscillating line of a CO2 laser are represented. The minimal detectable absorption achieved in experiment is ∼3.2 × 10−8 cm−1 W Hz−1/2.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::780b89bc568f2c4a592907b28080ff61 https://doi.org/10.1134/s0030400x0911023x Zobrazit plný text záznamu Plný text ve formátu PDF