Artículos de revistas
DCOOD optically pumped by a (CO2)-C-13 laser: new terahertz laser lines
Fecha
2008-06-01Registro en:
Applied Physics B-lasers and Optics. New York: Springer, v. 91, n. 3-4, p. 517-520, 2008.
0946-2171
10.1007/s00340-008-3018-2
WOS:000256251400021
Autor
Universidade Estadual Paulista (Unesp)
Universidade Estadual de Maringá (UEM)
Universidade Estadual de Campinas (UNICAMP)
Institución
Resumen
In this work we report on new optically pumped THz laser lines from deuterated formic acid (DCOOD). An isotopic (CO2)-C-13 laser was used for the first time as a pump source for this molecule, and a Fabry-Perot cavity was used as a THz laser resonator. Optoacoustic absorption spectra were used as a guide to search for new THz laser lines. We could observe six new laser lines in the range from 303.8 mu m (0.987 THz) to 725.1 mu m (0.413 THz). 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 of these laser lines. Furthermore, we also present a catalogue of all THz laser lines generated from DCOOD.