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Proceedings Paper

Readout of binary holographic data without direct photon-grating interactions
Author(s): Ju-Seog Jang; Dong-Hak Shin
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Paper Abstract

We explain that it is possible in principle to detect a change in light transmittance and phase shift of transparent materials without exposing even a single photon on them. Based on such interaction-free measurement, novel rewritable optical memories can be constructed with a photo-sensitive medium. In this case, even if the stored data are vulnerable to light, they can be read out without (or, at least a reduced) data impairment, because there is no (or, at least a reduced) interaction between the photon and the medium. We also discuss the effect of two system imperfections, the system loss and the low quantum efficiency of photon detectors, when such memories are to be implemented.

Paper Details

Date Published: 22 November 1999
PDF: 10 pages
Proc. SPIE 3802, Advanced Optical Data Storage: Materials, Systems, and Interfaces to Computers, (22 November 1999); doi: 10.1117/12.370237
Show Author Affiliations
Ju-Seog Jang, Pukyong National Univ. (South Korea)
Dong-Hak Shin, Pukyong National Univ. (South Korea)


Published in SPIE Proceedings Vol. 3802:
Advanced Optical Data Storage: Materials, Systems, and Interfaces to Computers
Pericles A. Mitkas; Zameer U. Hasan; Hans J. Coufal; Glenn T. Sincerbox, Editor(s)

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