Fiber laser intracavity absorption spectroscopy of ammonia and hydrogen cyanide in low pressure hydrocarbon flames

A. Goldman; I. Rahinov; S. Cheskis; B. Löhden; S. Wexler; K. Sengstock; V. M. Baev

doi:10.1016/j.cplett.2006.03.052

Fiber laser intracavity absorption spectroscopy of ammonia and hydrogen cyanide in low pressure hydrocarbon flames

A. Goldman, I. Rahinov, S. Cheskis, B. Löhden, S. Wexler, K. Sengstock, V. M. Baev

Research output: Contribution to journal › Article › peer-review

Abstract

Fiber laser intracavity spectroscopy (FLICAS) with Er-doped fiber laser has been applied for the first in situ detection of ammonia and hydrogen cyanide in a low pressure (30 Torr) stoichiometric methane/nitrogen/oxygen flame doped with 0.13-1.36% of NH₃. High resolution spectra of NH₃ and HCN have been recorded in the range of 1.5 μm (6440-6540 cm^-1). The minimum detectable concentration of HCN and NH₃ at a laser pulse duration of 8 μs and room temperature is 1 × 10¹³ molecule/cm³. The method can be used for in situ detection of many other molecules in the hostile combustion environment.

Original language	English
Pages (from-to)	147-151
Number of pages	5
Journal	Chemical Physics Letters
Volume	423
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2006.03.052
State	Published - 20 May 2006
Externally published	Yes

Bibliographical note

Funding Information:
This research was supported by the Israel Science Foundation (Grant No. 750/05) and by the James Franck, German-Israeli Binational Program in Laser Matter Interaction. The authors thank Bera Pálsdóttir and Christian Larsen from OFS Fitel, Denmark, for providing us with the Er-doped fiber.

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abstract = "Fiber laser intracavity spectroscopy (FLICAS) with Er-doped fiber laser has been applied for the first in situ detection of ammonia and hydrogen cyanide in a low pressure (30 Torr) stoichiometric methane/nitrogen/oxygen flame doped with 0.13-1.36% of NH3. High resolution spectra of NH3 and HCN have been recorded in the range of 1.5 μm (6440-6540 cm-1). The minimum detectable concentration of HCN and NH3 at a laser pulse duration of 8 μs and room temperature is 1 × 1013 molecule/cm3. The method can be used for in situ detection of many other molecules in the hostile combustion environment.",

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AU - Goldman, A.

AU - Rahinov, I.

AU - Cheskis, S.

AU - Löhden, B.

AU - Wexler, S.

AU - Sengstock, K.

AU - Baev, V. M.

PY - 2006/5/20

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AB - Fiber laser intracavity spectroscopy (FLICAS) with Er-doped fiber laser has been applied for the first in situ detection of ammonia and hydrogen cyanide in a low pressure (30 Torr) stoichiometric methane/nitrogen/oxygen flame doped with 0.13-1.36% of NH3. High resolution spectra of NH3 and HCN have been recorded in the range of 1.5 μm (6440-6540 cm-1). The minimum detectable concentration of HCN and NH3 at a laser pulse duration of 8 μs and room temperature is 1 × 1013 molecule/cm3. The method can be used for in situ detection of many other molecules in the hostile combustion environment.

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Fiber laser intracavity absorption spectroscopy of ammonia and hydrogen cyanide in low pressure hydrocarbon flames

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