Patent ID: 6437887
Filing Date: 2002-08-20
Classification: G02F

Abstract:
An optical logic device performing a logic operation with respect to one or plural input lights, said optical logic device comprisinga dielectric block arranged in such a manner that a driving light is incident on one plane thereof at a total reflection critical angle through an interior thereof, a metallic film formed over said one plane of said dielectric block, and an optical functional film comprising organic dye, a refractive index of which is changed by irradiation of light, formed over said metallic film in such a manner that said optical functional film is irradiated with a control light; wherein said optical functional film comprises a compound represented by formula (I): â€ƒwherein DYE+ represents a mono-valent cation of a cyanine dye; n represents an integer of 1 or more; R5 and R6 each independently represents a substituent group; R7 and R8 each independently represent an alkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group or a heterocyclic group, provided that R5 and R6, R5 and R7, R6 and R8, or R7 and R8 may each be connected to form a ring; and r and s each independently represent an integer of from 0 to 4, provided that when r and s are each 2 or more, plural groups of r and s may be the same or different.