کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5415709 1393771 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High precision line profile measurements on 13C acetylene using a near infrared frequency comb spectrometer
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
High precision line profile measurements on 13C acetylene using a near infrared frequency comb spectrometer
چکیده انگلیسی
Line profiles of a rovibrational transition of 13C acetylene have been measured for various pressures in the near infrared region. In order to accomplish high precision in frequency, we have employed a diode-laser, the frequency of which is locked to an optical comb. By tuning the comb frequency we have achieved a continuous frequency tuning over 2 GHz for the measurement of Doppler broadened line profiles spread over 2 GHz. In addition we have stabilized the incident power of the laser on the sample cell by adjusting the gain of a fiber amplifier via a feed-back loop. Observed profile data have been analyzed by the generalized Voigt function to determine the Gaussian width precisely: at the present we realized a precision of 10-3. The zero pressure line center position was determined with a precision of 10-9.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Spectroscopy - Volume 249, Issue 2, June 2008, Pages 95-99
نویسندگان
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