| 摘要 |
PROBLEM TO BE SOLVED: To provide a high-sensitivity biphoton absorption composition that can cause the biphoton absorption with a low power laser. SOLUTION: The composition comprises a biphoton absorption compound having the biphoton absorption cross-section area of≥10<SP>2</SP>GM (wherein 1 GM=1×10<SP>-50</SP>cm<SP>4</SP>s molecule<SP>-1</SP>photon<SP>-1</SP>) and a functional compound which is oxidized or reduced in accordance with an excitation state of the biphoton absorption compound or is changed by receiving an energy transfer, and a group in the biphoton absorption compound and a group in the functional compound can form each together a hydrogen bond but has a different structure from each other. As an example of the biphoton absorption compound, a compound etc. shown as the formula, or as an example of the functional compound, bis(4-dimethylaminophenyl)4-diethylaminophenylmethane etc. could be shown. COPYRIGHT: (C)2007,JPO&INPIT
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