Title :
The 13CH3OH optically pumped far-infrared laser: new lines and frequency measurements
Author :
Moraes, J.C.S. ; Bertolini, A. ; Carelli, G. ; Ioli, N. ; Moretti, A. ; Strumia, F.
Author_Institution :
Dept. de Fisica e Quimica, UNESP, Ilha Solteira, Brazil
fDate :
10/1/1996 12:00:00 AM
Abstract :
We report 18 new laser lines from 13CH3OH generated in an optically pumped far-infrared laser; the laser lines are in the range of 54.2-420 μm and are all characterized in wavelength, polarization relative to the pumping CO2 radiation, and pump offset relative to the CO2 center frequency. The frequencies of seven of these new lines along with 10 previously reported lines were measured by an accurate heterodyne technique, mixing them in a metal-insulator-metal (MIM) point contact diode, with another laser line of known frequency
Keywords :
demodulation; frequency measurement; gas lasers; infrared sources; laser transitions; light polarisation; optical materials; optical modulation; optical pumping; organic compounds; 54.2 to 420 mum; 13CH3OH optically pumped far-infrared laser; CO2; CO2 center frequency; accurate heterodyne technique; frequency measurements; laser lines; metal-insulator-metal point contact diode; methanol gas lasers; pump offset; Character generation; Diodes; Frequency measurement; Laser excitation; Metal-insulator structures; Optical mixing; Optical polarization; Optical pumping; Pump lasers; Wavelength measurement;
Journal_Title :
Quantum Electronics, IEEE Journal of
