Photochromic Rewritable Memory Media: A New Nondestructive Readout Method
- 1 September 1993
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 32 (9R)
- https://doi.org/10.1143/jjap.32.3987
Abstract
A new nondestructive readout method was proposed for photochromic rewritable memory media. When the medium has a thermal threshold in the writing process with a λ1 laser, reading using two lasers having emission lines at λ1 and λ2, which correspond to absorption bands of the two isomers, makes it possible to keep the signal intensity constant. Reading more than 106 times without destroying the memory was achieved by using photochromic diarylethene media.Keywords
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