The vinyl bromide optically pumped far infrared laser: new large offset emissions

Author

Moretti, A. ; Bertolini, A. ; Carelli, G. ; Nannizzi, M. ; Moraes, J.C.S.

Author_Institution

GNSM, CNR, Pisa, Italy

Volume

37

Issue

4

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

489

Lastpage

493

Abstract

We present the results of a study on vinyl bromide in the search for new far infrared (FIR) laser lines. As the pump source, we use a CW waveguide CO₂ laser with a tunability of 290 MHz around each line in order to pump large offset vibrational transitions. As a consequence, we obtained 28 new FIR laser emissions; 24 of them have wavelengths greater than 500 μm and are, therefore, suitable to be used in high-field EPR spectroscopy. For each of the new lines, we give the wavelength, the offset of the pumping transition with respect to the center frequency of the CO₂ emission, the polarization relative to that of the pumping laser line, the operating pressure, and the relative intensity. We also present a catalog including data of all of the FIR laser lines observed from this molecule up to now

Keywords

gas lasers; laser transitions; optical pumping; organic compounds; submillimetre wave generation; submillimetre wave lasers; vibrational states; 500 mum; CO₂; CW waveguide CO₂ laser; FIR laser lines; center frequency; high-field EPR spectroscopy; large offset vibrational transitions; new large offset emissions; operating pressure; polarization; pump source; pumping laser line; pumping transition; relative intensity; tunability; vinyl bromide optically pumped far infrared laser; Finite impulse response filter; Laser excitation; Laser transitions; Optical pumping; Optical waveguides; Paramagnetic resonance; Pump lasers; Spectroscopy; Waveguide lasers; Waveguide transitions;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.914396

Filename

914396