Three-dimensional optical data storage using three-dimensional optics

Citation
Y. Kawata et al., Three-dimensional optical data storage using three-dimensional optics, OPT ENG, 40(10), 2001, pp. 2247-2254
Citations number
27
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICAL ENGINEERING
ISSN journal
0091-3286 → ACNP
Volume
40
Issue
10
Year of publication
2001
Pages
2247 - 2254
Database
ISI
SICI code
0091-3286(200110)40:10<2247:TODSUT>2.0.ZU;2-J
Abstract
Three-dimensional optical memory with photorefractive materials is discusse d for ultra-high density/capacity memory exceeding the classical limit of a conventional optical recording system. Bit data are recorded as highly loc alized refractive index variations in three-dimensional volume using a focu sed laser beam. We show recording and reading results using a multilayered recording medium with a photoisomerization polymer and transparent films. T wo-photon recording is also demonstrated. We also discuss the spherical abe rration corrections using a volume holographic device, and compact confocal configuration using a semiconductor laser. (C) 2001 Society of Photo-Optic al Instrumentation Engineers.