Title :
Optical pumping of CHD2OH and CH2DOH methanol isotopomers by means of a new pulsed CO2 laser: characterization of new far-infrared laser emissions
Author :
Carelli, Giorgio ; De Michele, Andrea ; Moretti, Augusto
Author_Institution :
Dipt. di Fisica, Univ. di Pisa, Italy
fDate :
4/1/2006 12:00:00 AM
Abstract :
We have reinvestigated CHD2OH and CH2DOH methanol isotopomers as sources of far-infrared laser radiation using the optical pumping technique. A new waveguide pulsed CO2 laser was used, that delivers high peak powers also in the 10-HP CO2 band and has allowed us to observe 19 new far-infrared emissions from CHD2OH and 8 new far-infrared emissions from CH2DOH. Each of them is characterized in wavelength, pump offset from the center of the exciting CO2 line, relative polarization, optimum operating pressure and intensity.
Keywords :
gas lasers; infrared sources; light polarisation; optical pumping; organic compounds; stimulated emission; CH2DOH; CHD2OH; CO2; CO2 laser; exciting CO2 line; far-infrared emissions; far-infrared laser emissions; high-peak-power laser; methanol isotopomers; optical pumping; optimum operating intensity; optimum operating pressure; pulsed laser; pump offset; relative polarization; waveguide laser; Finite impulse response filter; Laser excitation; Laser tuning; Methanol; Optical pulses; Optical pumping; Optical resonators; Optical waveguides; Pump lasers; Waveguide lasers; Gas lasers; methanol; submillimeter wave lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2006.871554
