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

نتاج البحث: نشر في مجلةمقالةمراجعة النظراء

ملخص

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.

اللغة الأصليةالإنجليزيّة
الصفحات (من إلى)147-151
عدد الصفحات5
دوريةChemical Physics Letters
مستوى الصوت423
رقم الإصدار1-3
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 20 مايو 2006
منشور خارجيًانعم

ملاحظة ببليوغرافية

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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