Single-mode laser tuning from cholesteric elastomers using a "notch" band-gap configuration.
Opt Express
; 18(2): 575-81, 2010 Jan 18.
Article
em En
| MEDLINE
| ID: mdl-20173877
ABSTRACT
The interest in the application of cholesteric liquid crystals for tunable lasers has risen in the past few years. Here, we want to obtain a mechanically tunable laser device using cholesteric liquid crystal (CLC) elastomers as resonant cavity mirrors in a three-layer configuration, which includes in between an isotropic layer incorporating a laser dye as active medium. The transmission band-gap of the two CLC elastomers was shifted one with respect to the other in order to create a defect ("notch") in the middle of the band-gap which allowed a single-mode lasing from the system. The wavelength of the laser could be changed by mechanical tuning of the rubbery device.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Refratometria
/
Elastômeros
/
Cristais Líquidos
/
Lasers
Idioma:
En
Revista:
Opt Express
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Reino Unido