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Characterization of new FIR laser lines from CD3-rocking and asymmetric CD3 deformation modes of 13CD3 OD

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4 Author(s)
Viscovini, R.C. ; Inst. de Fisica, UNICAMP, Campinas, Brazil ; Telles, E.M. ; Scalabrin, A. ; Pereira, D.

In this paper, we report new optically pumped far-infrared (FIR) laser lines from the in-plane CD3-rocking and asymmetric CD 3 deformation absorption vibrational bands of 13CD 3OD. A waveguide CO2 laser of wide tunability (290 MHz) was used as the pump source, and a Fabry-Perot open cavity as the FIR laser resonator. Optoacoustic absorption spectrum was used as a guide to search for new FIR laser lines. We could observe 13 new laser lines in the range 103-491 μm. The lines were characterized according to wavelength, relative polarization, relative intensity, and optimum working pressure. The transferred lamb-dip technique was used to measure the frequency absorption transition for both new and previously reported laser lines

Published in:

Quantum Electronics, IEEE Journal of  (Volume:35 ,  Issue: 11 )