Nondestructive readout of a three-dimensional photochromic optical memory with a near-infrared differential phase-contrast microscope

Optics Letters
A ToriumiS Kawata

Abstract

A three-dimensional (3D) rewritable optical memory using photochromic material is described for high-density memory. The bits are recorded in a 3D volume of photochromic material. A transformation of the photochromic molecule between two isomers with different absorption spectra can be stimulated by irradiation with appropriate wavelengths. We show that a nondestructive readout of photochromic memory is possible by use of a small difference in the refractive index of the photochromic isomers in the near-IR range. For this purpose a near-IR laser-scan differential phase-contrast microscope is used. Experimental results of 3D recording and nondestructive reading are presented.

Citations

Dec 17, 2014·Chemical Reviews·Masahiro IrieSeiya Kobatake
Aug 13, 2011·ACS Applied Materials & Interfaces·Gheorghe LuchitaKevin D Belfield
Jul 7, 2005·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Guiyuan JiangDaoben Zhu
Aug 15, 2019·Physical Chemistry Chemical Physics : PCCP·Andreas Erbs Hillers-Bendtsen, Kurt V Mikkelsen
Nov 7, 2006·Applied Optics·Masao MiyamotoYoshimasa Kawata
Feb 21, 2008·Applied Optics·J L Kann, F B McCormick
Jun 26, 2012·Macromolecular Rapid Communications·Kazuo Tanaka, Yoshiki Chujo
Mar 9, 2005·Optics Letters·Naoki Kobayashi, Chikara Egami
Aug 19, 2016·Applied Optics·Sanchari SenLuis Grave de Peralta
Sep 18, 2018·Advanced Structural and Chemical Imaging·Jordan A HachtelMiaofang Chi
Jan 5, 2002·Chemical Reviews·Satoshi Kawata, Yoshimasa Kawata

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