SIMULTANEOUS TWO-PHOTON ABSORPTION RECORDING-REPRODUCTION METHOD, AND SIMULTANEOUS TWO-PHOTON ABSORPTION RECORDING MATERIAL FOR USE THEREIN

摘要

PROBLEM TO BE SOLVED: To provide a two-photon absorption recording-reproduction technique having sensitivity higher than conventional one in a type of a two-photon absorption recording-reproduction technique in which fluorescent intensity is reduced in a two-photon absorption recording part.SOLUTION: A simultaneous two-photon absorption recording-reproduction method of recording and reproducing a data by inducing changes in the fluorescence intensities in a recorded part and an unrecorded part by simultaneous two-photon absorption, comprises: generating a fluorescence quencher in a two-photon recording part; and inducing quenching by excitation energy transfer between the fluorescence quencher and a fluorescent dye to physically quench the fluorescence by reproduction light from the fluorescent dye and decrease the fluorescence intensity in the recorded part; and a simultaneous two-photon absorption recording material for use in the method capable of generating a fluorescence quencher capable of inducing quenching by excitation energy transfer between the fluorescence quencher and a fluorescent dye by simultaneous two-photon absorption and physically quenching the fluorescence from the fluorescent dye.