EXPERIMENTAL AND THEORETICAL INVESTIGATION OF PHOTOACOUSTIC-SIGNAL GENERATION BY WAVELENGTH-MODULATED DIODE-LASERS

被引：18

作者：

MIKLOS, A ^{[1
]}

BOZOKI, Z ^{[1
]}

JIANG, Y ^{[1
]}

FEHER, M ^{[1
]}

机构：

[1] UNIV BASEL,INST PHYS CHEM,CH-4056 BASEL,SWITZERLAND

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 1994年 / 58卷 / 06期

关键词：

D O I：

10.1007/BF01081079

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The dependence of photoacoustic spectra on different experimental parameters was investigated by both theoretical and experimental means. The experiments were carried out with an inexpensive resonant optoacoustic system based on near-infrared laser diodes, which allowed photoacoustic and direct absorption spectra to be recorded simultaneously. The experimental observations were compared to theoretical predictions. It was also demonstrated that source-frequency (wavelength) modulation at the resonance frequency of the cell provides superior signal to noise ratio compared to amplitude modulation and eliminates background drifts and fluctuations.

引用

页码：483 / 492

页数：10

共 26 条

[1] EXPERIMENTAL IMPROVEMENTS IN RECORDING GAS-PHASE PHOTOACOUSTIC SPECTRA
DAVIDSSON, J
GUTOW, JH
ZARE, RN
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (10) : 4069 - 4073
[2] DILIETO A, 1982, APPL PHYS B-PHOTO, V27, P1, DOI 10.1007/BF00697288
[3] INEXPENSIVE NEAR-INFRARED DIODE-LASER-BASED DETECTION SYSTEM FOR AMMONIA
FEHER, M
MARTIN, PA
ROHRBACHER, A
SOLIVA, AM
MAIER, JP
[J]. APPLIED OPTICS, 1993, 32 (12): : 2028 - 2030
[4] HE-NE AND CW CO2-LASER LONG-PATH SYSTEMS FOR GAS-DETECTION
GRANT, WB
[J]. APPLIED OPTICS, 1986, 25 (05): : 709 - 719
[5] HENRY BR, 1989, PROG ANAL SPECTROSC, V12, P349
[6] Mandelis A., 1992, PRINCIPLES PERSPECTI
[7] Morse P.M., 1986, THEORETICAL ACOUSTIC
[8] PULSED OPTOACOUSTIC SPECTROSCOPY OF CONDENSED MATTER
PATEL, CKN
TAM, AC
[J]. REVIEWS OF MODERN PHYSICS, 1981, 53 (03) : 517 - 550
[9] 2ND-HARMONIC DETECTION WITH TUNABLE DIODE-LASERS - COMPARISON OF EXPERIMENT AND THEORY
REID, J
LABRIE, D
[J]. APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1981, 26 (03): : 203 - 210
[10] PHOTOACOUSTIC MEASUREMENT OF AMMONIA IN THE ATMOSPHERE - INFLUENCE OF WATER-VAPOR AND CARBON-DIOXIDE
ROOTH, RA
VERHAGE, AJL
WOUTERS, LW
[J]. APPLIED OPTICS, 1990, 29 (25): : 3643 - 3653

← 1 2 3 →