High-frequency Bragg gratings in a photothermorefractive glass.
Opt Lett
; 25(23): 1693-5, 2000 Dec 01.
Article
em En
| MEDLINE
| ID: mdl-18066316
ABSTRACT
Holographic UV mirrors were recorded in a volume of photothermorefractive glass. This photosensitive silicate glass doped with silver, cerium, and fluorine is transparent in the near-UV, visible, and near-IR spectral regions, and its induced refractive-index change reaches 10(-3). UV radiation of a He-Cd laser at 325 nm was used for Bragg grating recording with a spatial frequency of approximately 9200 mm(-1). The absolute diffraction efficiency of the recorded mirror reached 12.6% at 325 nm and did not deteriorate under the long-time effects of optical irradiation and heating up 400 degrees C.
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Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2000
Tipo de documento:
Article