کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5430412 1508711 2008 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Oxygen, nitrogen and air broadening of HCN spectral lines at terahertz frequencies
موضوعات مرتبط
مهندسی و علوم پایه شیمی طیف سنجی
پیش نمایش صفحه اول مقاله
Oxygen, nitrogen and air broadening of HCN spectral lines at terahertz frequencies
چکیده انگلیسی

The room-temperature nitrogen- and oxygen-broadening coefficients of hydrogen cyanide spectral lines have been measured in the 0.5-3 THz (17-100 cm−1) frequency range (purely rotational transitions with 5⩽J⩽36) by a continuous-wave terahertz spectrometer based on a photomixing source. An improved version of the Robert and Bonamy semiclassical formalism has been used to calculate the oxygen-broadening coefficients and resulted in a good agreement with these measurements. The nitrogen and oxygen data are combined to provide the air-broadening coefficients as used by the HITRAN database. A significant difference is observed between the measured and tabulated values for transitions with high values of the rotational quantum number. A new polynomial representation is suggested for inclusion in HITRAN. A similar polynomial expression has been derived for the nitrogen broadening to aid the studies of Titan's atmosphere.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer - Volume 109, Issues 17–18, November–December 2008, Pages 2857-2868
نویسندگان
, , , , , , , ,