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

Y1 - 2006/5/20

N2 - 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.

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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JO - Chemical Physics Letters

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

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