Real-time ultrasensitive detection of ammonia gas using a compact CRDS spectrometer

被引：3

作者：

Lee, Jaebeom ^{[1
]}

Oh, Myoung-Kyu ^{[2
]}

机构：

[1] Woosung E&D Co, Osan Si 18102, Gyeonggi Do, South Korea

[2] Gwangju Inst Sci & Technol GIST, Adv Photon Res Inst APRI, Gwangju 61005, South Korea

来源：

APPLIED OPTICS | 2023年 / 62卷 / 05期

关键词：

CAVITY RING-DOWN; SPECTROSCOPY; LASER; BREATH; SCHEMES;

D O I：

10.1364/AO.477575

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Trace-level ammonia gas in air was analyzed using a fiber-based compact cavity ring-down spectrometer (CRDS). For the compact spectrometer, a 20 cm linear cavity with two high reflectivity (>99.999%) mirrors was employed. The laser frequency was locked to the cavity resonance by using frequency shifted (160 MHz) optical feedback. For NH3 detection, a strong absorption band at 1513.98 nm with an absorption cross section of 3.3 middot 10-21 cm/molecule was used. As a result, a detection sensitivity of similar to 0.1 ppb (3-Sigma) was achieved for NH3 within 10 s.(c) 2023 Optica Publishing Group

引用

页码：1357 / 1363

页数：7

共 28 条

[1]

[Anonymous], The HITRAN Database

[2] Cavity ring-down spectroscopy: Experimental schemes and applications [J].

Berden, G ;

Peeters, R ;

Meijer, G .

INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY, 2000, 19 (04) :565-607

[3] Optical feedback frequency stabilized cavity ring-down spectroscopy [J].

Burkart, Johannes ;

Romanini, Daniele ;

Kassi, Samir .

OPTICS LETTERS, 2014, 39 (16) :4695-4698

[4]

Crosson E. R., ANAL CHEM, V74

[5] Online monitoring of ethane traces in exhaled breath with a difference frequency generation spectrometer [J].

Halmer, D. ;

Thelen, S. ;

Hering, P. ;

Muertz, M. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2006, 85 (2-3) :437-443

[6] Detection of trace gases by rapidly-swept continuous-wave cavity ringdown spectroscopy: pushing the limits of sensitivity [J].

He, Y. ;

Orr, B. J. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2006, 85 (2-3) :355-364

[7] A Fiber-Integrated CRDS Sensor for In-Situ Measurement of Dissolved Carbon Dioxide in Seawater [J].

Hu, Mai ;

Chen, Bing ;

Yao, Lu ;

Yang, Chenguang ;

Chen, Xiang ;

Kan, Ruifeng .

SENSORS, 2021, 21 (19)

[8]

Kachanov A., 2014, U.S. patent, Patent No. [8,885,167B2, 8885167]

[9] Application of Near-Infrared Optical Feedback Cavity Enhanced Absorption Spectroscopy (OF-CEAS) to the Detection of Ammonia in Exhaled Human Breath [J].

Luo, Zhifu ;

Tan, Zhongqi ;

Long, Xingwu .

SENSORS, 2019, 19 (17)

[10] Pulsed quantum cascade laser-based cavity ring-down spectroscopy for ammonia detection in breath [J].

Manne, Jagadeeshwari ;

Sukhorukov, Oleksandr ;

Jager, Wolfgang ;

Tulip, John .

APPLIED OPTICS, 2006, 45 (36) :9230-9237

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