Low-threshold, narrow-line THz-wave parametric oscillator with an intra-cavity grazing-incidence grating.
Opt Express
; 16(17): 12571-6, 2008 Aug 18.
Article
em En
| MEDLINE
| ID: mdl-18711493
ABSTRACT
We report a low-threshold, narrow-line THz-wave parametric oscillator with an intra-cavity grazing-incidence grating and a 1-mm thick, 45-mm long lithium-niobate planar waveguide. When pumped by an actively Q-switched NdYAG laser, the threshold energy and intensity of the parametric oscillator were about 2.2 mJ and 70 MW/cm(2), respectively. The linewidths of the output THz wave were 12 and 134 GHz with and without the intra-cavity grating, respectively.
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Base de dados:
MEDLINE
Assunto principal:
Refratometria
/
Lasers de Estado Sólido
/
Óptica e Fotônica
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article