Numéro
J. Phys. Colloques
Volume 48, Numéro C7, Décembre 1987
1st International Laser M2P Conference
Page(s) C7-743 - C7-745
DOI https://doi.org/10.1051/jphyscol:19877183
1st International Laser M2P Conference

J. Phys. Colloques 48 (1987) C7-743-C7-745

DOI: 10.1051/jphyscol:19877183

STUDY OF HIGHLY EXCITED VIBRATIONAL STATES OF CHD3, CHF3, SiH4, SiH2Cl2 BY INTRACAVITY LASER ABSORPTION SPECTROSCOPY (ICLAS)

A. CAMPARGUE, H. BEN KRAIEM, M. CHENEVIER and F. STOECKEL

Laboratoire de Spectrométrie Physique (CNRS UA-08 et Celphyra), Université Scientifique, Technologique et Médicale de Grenoble, BP 87, F-38402 Saint-Martin-d'Hères Cedex, France


Abstract
By using a visible and an IR ICLAS spectrometer coupled with a high resolution spectrograph (λ/Δλ = 800000) we have studied the high vibrational excited states in the ground state of some small polyatomic molecules. The study was focussed on the transition involving several quanta of stretching and bending of one to four X-H bonds, with X=C, Si. Rotational constants including B', C', D'j, D'jk and Dk' are given, perturbation in frequency and coupling between stretching and bending of large amplitude are discussed.