THE OPTOTHERMAL SPECTRA OF INFRARED MULTIPHOTON ABSORPTION OF CF3CDCl2 | Zendy

Zhengmin Wang | Zendy; YANG LI-SHU | Zendy; Zongcai Liu | Zendy; WU CHUANG-XIU | Zendy

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THE OPTOTHERMAL SPECTRA OF INFRARED MULTIPHOTON ABSORPTION OF CF3CDCl2

Author(s) -

Zhengmin Wang,

YANG LI-SHU,

Zongcai Liu,

WU CHUANG-XIU

Publication year - 1988

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.37.670

Subject(s) - infrared , absorption (acoustics) , absorption spectroscopy , materials science , excited state , infrared spectroscopy , deuterium , atomic physics , wavelength , spectral line , laser , optics , analytical chemistry (journal) , molecular physics , physics , chemistry , optoelectronics , astronomy , chromatography , quantum mechanics

The optothermal spectrum of infrared MPA of CF3CDC12 obtained by using optothermal cell with a platinum filament as a detector is reported here. It is found that the absorption peak at 944 cm-1 in infrared linear absorption spectrum splits into two peaks at 947 cm-1 and 927cm-1 in MPA spectrum. This phenomenon could be related to-the coupling of normal vibrations produced by Coriolis forces and anharmonisity. So one could select a more suitable excited wavelength according to this new result in laser separation of deuterium isotop. The absoption peak at 986 cm-1 in infrared linear absorption spectrum shows a red shift of 6cm-1 in MPA spectrum. This is due to the anhamonicity of vibrational levels of the molecule.

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