Silver halide fiber-based evanescent-wave liquid droplet sensing with room temperature mid-infrared quantum cascade lasers

被引：26

作者：

Chen, JZ ^{[1
]}

Liu, Z

Gmachl, CF

Sivco, DL

机构：

[1] Princeton Univ, Princeton Inst Sci & Technol Mat, Princeton, NJ 08544 USA

[2] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA

[3] Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

OPTICS EXPRESS | 2005年 / 13卷 / 16期

关键词：

D O I：

10.1364/OPEX.13.005953

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Quantum cascade lasers and unclad silver halide fibers were used to assemble mid-infrared fiber-optics evanescent-wave sensors suitable to measure the chemical composition of liquid droplets. The laser wavelengths were chosen to be in the regions which offer the largest absorption contrast between constituents inside the mixture droplets. A pseudo-Beer-Lambert law fits well with the experimental data. Using a 300 mu m diameter fiber with a 25 mm immersion length, the signal to noise ratios correspond to 1 vol.% for alpha-tocophenol in squalane and 2 vol.% for acetone in aqueous solution for laser wavenumbers of 1208 cm(-1) and 1363 cm(-1), respectively. (C) 2005 Optical Society of America.

引用

页码：5953 / 5960

页数：8

共 19 条

[1] Hollow-waveguide gas sensing with room-termperature quantum cascade lasers [J].

Charlton, C ;

de Melas, F ;

Inberg, A ;

Croitoru, N ;

Mizaikoff, B .

IEE PROCEEDINGS-OPTOELECTRONICS, 2003, 150 (04) :306-309

[2] Effect of contact angle hysteresis on thermocapillary droplet actuation [J].

Chen, JZ ;

Troian, SM ;

Darhuber, AA ;

Wagner, S .

JOURNAL OF APPLIED PHYSICS, 2005, 97 (01)

[3] Capacitive sensing of droplets for microfluidic devices based on thermocapillary actuation [J].

Chen, JZ ;

Darhuber, AA ;

Troian, SM ;

Wagner, S .

LAB ON A CHIP, 2004, 4 (05) :473-480

[4] Thermocapillary actuation of droplets on chemically patterned surfaces by programmable microheater arrays [J].

Darhuber, AA ;

Valentino, JP ;

Troian, SM ;

Wagner, S .

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 2003, 12 (06) :873-879

[5] Mixed alkanethiol self-assembled monolayers as substrates for microarraying applications [J].

Datwani, SS ;

Vijayendran, RA ;

Johnson, E ;

Biondi, SA .

LANGMUIR, 2004, 20 (12) :4970-4976

[6] Towards functional group-specific detection in high-performance liquid chromatography using mid-infrared quantum cascade lasers [J].

Edelmann, A ;

Ruzicka, C ;

Frank, J ;

Lendl, B ;

Schrenk, W ;

Gornik, E ;

Strasser, G .

JOURNAL OF CHROMATOGRAPHY A, 2001, 934 (1-2) :123-128

[7] Recent progress in quantum cascade lasers and applications [J].

Gmachl, C ;

Capasso, F ;

Sivco, DL ;

Cho, AY .

REPORTS ON PROGRESS IN PHYSICS, 2001, 64 (11) :1533-1601

[8]

Gmachl C, 2000, IEEE CIRCUITS DEVICE, V16, P10, DOI 10.1109/101.845908

[9] Spectroscopy in the gas phase with GaAs/AlGaAs quantum-cascade lasers [J].

Hvozdara, L ;

Gianordoli, S ;

Strasser, G ;

Schrenk, W ;

Unterrainer, K ;

Gornik, E ;

Murthy, CSSS ;

Kraft, M ;

Pustogow, V ;

Mizaikoff, B ;

Inberg, A ;

Croitoru, N .

APPLIED OPTICS, 2000, 39 (36) :6926-6930

[10] Ozone detection by differential absorption spectroscopy at ambient pressure with a 9.6 μm pulsed quantum-cascade laser [J].

Jiménez, R ;

Taslakov, M ;

Simeonov, V ;

Calpini, B ;

Jeanneret, F ;

Hofstetter, D ;

Beck, M ;

Faist, J ;

Van den Bergh, H .

APPLIED PHYSICS B-LASERS AND OPTICS, 2004, 78 (02) :249-256

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