Patent ID: 7897296
Filing Date: 2011-03-01
Classification: G03H,G11B

Abstract:
1. A method for recording information in a holographic data storage media, the method comprising: irradiating a holographic data storage media that comprises a photoactive dye with an interference pattern, wherein the photoactive dye comprises a nitrone and wherein the media is capable of fixing an interference pattern within its volume to record holographic data; wherein the irradiation is conducted with electromagnetic energy having a wavelength of about 350 to about 1,100 nanometers; and reacting the photoactive dye to fix the interference pattern in the holographic data storage media, wherein the reacted photoactive dye does not revert back to an original form of the dye by thermal or photochromic means; and converting the reacted photoactive dye to a non-photochromic state, wherein the converting is induced by an electric field, or by light exposure of a photoacid generator, or by a combination of the foregoing.