Voltage-controlled compression for period tuning of optical surface relief gratings.
Opt Lett
; 36(8): 1389-91, 2011 Apr 15.
Article
em En
| MEDLINE
| ID: mdl-21499366
ABSTRACT
This Letter reports on new methods and a consistent model for voltage tunable optical transmission gratings. Elastomeric gratings were molded from holographically written surface relief gratings in an azobenzene sol-gel material. These were placed on top of a transparent electroactive elastomeric substrate. Two different electro-active substrate elastomers were employed, with a large range of prestretches. A novel finite-deformation theory was found to match the device response excellently, without fitting parameters. The results clearly show that the grating underwent pure-shear deformation, and more surprisingly, that the mechanical properties of the electro-active substrate did not affect device actuation.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Alemanha