Three-dimensional optical memory using photopolymer, photorefractive crystals, and photochromic materials

Satoshi Kawata; Akiko Toriumi

doi:10.1117/12.280679

30 July 1997 Three-dimensional optical memory using photopolymer, photorefractive crystals, and photochromic materials

Satoshi Kawata, Akiko Toriumi

Proceedings Volume 3109, Optical Data Storage 1997 Topical Meeting; (1997) https://doi.org/10.1117/12.280679
Event: Optical Data Storage Topical Meeting '97, 1997, Tucson, AZ, United States

Abstract

To exceed the capacity limitation of the optical method of data storage, we record and read digital data in three dimension in photorefractive material which is photosensitive for recording and refractile in reading. Experimental results are shown with photopolymers, photorefractive ferroelectric crystals, and photochromic dyes. Thirty layers have been successfully recorded and read in 300 micrometers -thick photopolymer film. Optical systems, including a confocal laser-scanning system and a two-photon laser-scanning system, and photorefractive materials suitable for 3D data storage are discussed with current problems for commercial applications.

Citation Download Citation

Satoshi Kawata and Akiko Toriumi "Three-dimensional optical memory using photopolymer, photorefractive crystals, and photochromic materials", Proc. SPIE 3109, Optical Data Storage 1997 Topical Meeting, (30 July 1997); https://doi.org/10.1117/12.280679

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