Title :
13CD3OD optically pumped by a waveguide CO 2 laser: new FIR laser lines
Author :
Viscovini, R.C. ; Scalabrin, A. ; Pereira, D.
Author_Institution :
Inst. de Fisica, Univ. Estadual de Campinas, Sao Paulo, Brazil
fDate :
6/1/1997 12:00:00 AM
Abstract :
A waveguide CO2 laser of wide tunability was used to pump infrared transitions of the 13CD3OD C-O stretching vibrational mode. The optoacoustic signal associated with the absorbing transitions served as a guide to search for new laser lines. We could observe 36 new far-infrared laser lines ranging from 57 to 1192 μm. All lines were characterized in wavelength, relative polarization, intensity, optimum pressure of operation, and precise offset measurements
Keywords :
gas lasers; infrared spectra; laser transitions; laser tuning; light polarisation; optical pumping; organic compounds; photoacoustic spectra; vibrational modes; waveguide lasers; 57 to 1192 mum; 13CD3OD; 13CD3OD C-O stretching vibrational mode; CO2; FIR laser lines; absorbing transitions; gas lasers; infrared transitions; methanol; optically pumped; optimum pressure; optoacoustic signal; precise offset measurements; relative polarization; waveguide CO2 laser; wide tunability; 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
