Abstract
Photocurrent switching for nondestructive readout of photochromic memory is reported. The photoisomerization of a diarylethene (DAE) molecule in a memory layer switched the photocurrent generated by laser light irradiation. The switching is based on an ionization potential change of the DAE molecules. Excellent ON-OFF ratio of photocurrent was achieved by the irradiation at 780 nm. When the pulsed laser light with a wavelength of 780 nm was repeatedly irradiated to the colored (recorded) and uncolored (initial) memory states, no change of the photocurrent signal levels was observed even after 800×103 cycles, indicating a successful demonstration of the nondestructive readout.
© 2011 Optical Society of America
PDF ArticleMore Like This
Tsuyoshi Tsujioka, Kyoko Masui, and Rie Takagi
MP19 International Symposium on Optical Memory and Optical Data Storage (ODS) 2005
K. Uchida, M. Saito, A. Murakami, T. Kobayashi, S. Nakamura, and M. Irie
MP11 International Symposium on Optical Memory and Optical Data Storage (ODS) 2005
G.W. Rayfield
OTuB.23 Symposium on Optical Memory (ODS) 1996