All-optical image processing with a supranonlinear dye-doped liquid-crystal film

Authors
Shih, MY Shishido, A Chen, PH Wood, MV Khoo, IC
Citation
My. Shih et al., All-optical image processing with a supranonlinear dye-doped liquid-crystal film, OPTICS LETT, 25(13), 2000, pp. 978-980
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS LETTERS
ISSN journal
01469592 → ACNP
Volume
25
Issue
13
Year of publication
2000
Pages
978 - 980
Database
ISI
SICI code
0146-9592(20000701)25:13<978:AIPWAS>2.0.ZU;2-N
Abstract
We demonstrate a dynamic all-optical image-intensity-inversion technique th at uses self- and mutual-phase-modulation effects with a highly nonlinear n ematic liquid-crystal film placed in an intermediate focal plane. This proc ess requires submilliwatt optical power, responds in a few milliseconds, an d can be realized over a very broad spectral range. (C) 2000 Optical Societ y of America.