Title :
CHD2OH optically pumped by a waveguide CO2 laser: new far-infrared laser lines from the CD2 wagging vibrational mode
Author :
Viscovini, R.C. ; Cruz, F.C. ; Scalabrin, A. ; Pereira, D.
Author_Institution :
Inst. de Fisica, UNICAMP, Campinas, Brazil
fDate :
8/1/2002 12:00:00 AM
Abstract :
For the first time, a wide tunability waveguide CO2 laser was used to pump the CHD2OH molecule for the generation of new FIR laser lines with a large offset. Optoacoustic signals associated with the infrared absorbing transitions of the CD2 wagging vibrational mode served as a guide for finding new laser lines. All lines were characterized in wavelength, relative polarization, intensity, optimum pressure of operation, and precise offset measurements.
Keywords :
gas lasers; infrared spectra; laser transitions; optical pumping; organic compounds; photoacoustic spectra; submillimetre wave lasers; vibrational states; CD2 wagging vibrational mode; CHD2OH molecule; CO2; FIR laser lines; far-infrared laser lines; infrared absorbing transitions; intensity; methanol-d2; optically pumped CHD2OH; optimum operation pressure; optoacoustic signals; precise offset measurements; relative polarization; waveguide CO2 laser; wavelength; wide tunability waveguide CO2 laser; Finite impulse response filter; Laser excitation; Laser modes; Laser transitions; Laser tuning; Optical pumping; Optical resonators; Optical waveguides; Pump lasers; Waveguide lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2002.801008
