Real-time measurements of trace gases using a compact difference-frequency-based sensor operating at 3.5 μm

被引：43

作者：

Lancaster, DG ^{[1
]}

Richter, D ^{[1
]}

Curl, RF ^{[1
]}

Tittel, FK ^{[1
]}

机构：

[1] Rice Univ, Rice Quantum Inst, Houston, TX 77005 USA

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 1998年 / 67卷 / 03期

关键词：

D O I：

10.1007/s003400050513

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The use of a compact gas sensor based on cw difference-frequency generation in periodically poled LiNbO3 for on-line absorption measurements of H2CO, CH4, and H2O near 3.5 mu m is reported. Formaldehyde levels of 30 ppb, corresponding to absorptions of 2 x 10(-4) have been measured using absorption spectroscopy. In this paper we report specifically the performance of this sensor as part of the 1997 Lunar-Mars Life Support Test program at the NASA Johnson Space Center.

引用

页码：339 / 345

页数：7

共 16 条

[11] Compact laser difference-frequency spectrometer for multicomponent trace gas detection
Petrov, KP
Curl, RF
Tittel, FK
[J]. APPLIED PHYSICS B-LASERS AND OPTICS, 1998, 66 (05): : 531 - 538
[12] Sigrist M. W, 1994, AIR MONITORING SPECT
[13] Absorption measurements of the second overtone band of NO in ambient and combustion gases with a 1.8-mu m room-temperature diode laser
Sonnenfroh, DM
Allen, MG
[J]. APPLIED OPTICS, 1997, 36 (30): : 7970 - 7977
[14] Room-temperature mid-infrared laser sensor for trace gas detection
Topfer, T
Petrov, KP
Mine, Y
Jundt, D
Curl, RF
Tittel, FK
[J]. APPLIED OPTICS, 1997, 36 (30): : 8042 - 8049
[15] MEASUREMENT OF TRACE GAS FLUXES USING TUNABLE DIODE-LASER SPECTROSCOPY
ZAHNISER, MS
NELSON, DD
MCMANUS, JB
KEBABIAN, PL
[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1995, 351 (1696): : 371 - 381
[16] Modulation spectroscopy with a semiconductor diode laser by injection-current modulation
Zhu, X
Cassidy, DT
[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1997, 14 (08) : 1945 - 1950

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