Title:
ORGANIC NONLINEAR OPTICAL MATERIAL
Document Type and Number:
Japanese Patent JPH02118524
Kind Code:
A
Abstract:
PURPOSE:To provide the novel org. nonlinear optical material which improves nonlinear type optical characteristics, expand a transparent region in a visible region and is highly valuable in terms of practicability by using the org. nonlinear optical material consisting of the compd. expressed by the specific general formula. CONSTITUTION:This invention relates to the compd. of a certain kind of a cyanine dye, etc., formed by bonding various kinds of nitrogen-contg. condensed rings including an indolyl group directly or via carbon-carbon double bonds to barbituric acid skeleton or thiobarbituric acid skeleton. Namely, this material is the org. nonlinear optical material consisting of the compd. expressed by the general formula I, where R<1> to R<4> are respectively 1 to 4C alkyl group, such as methyl group, ethyl group, n-propyl group, i-propyl group and n-butyl group or halogen, such as iodine, fluorine, bromine or chlorine. the crystallinity of the compd. is low if the R<1> to R<4> are >=5C alkyl groups.
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Inventors:
IKEDA HIDEJI
SAKAI TOSHIO
KAWABE YUTAKA
SAKAI TOSHIO
KAWABE YUTAKA
Application Number:
JP27083488A
Publication Date:
May 02, 1990
Filing Date:
October 28, 1988
Export Citation:
Assignee:
IDEMITSU KOSAN CO
International Classes:
G02F1/35; C07D401/06; C07D403/06; C07D417/06; C09K9/02; G02F1/355; G02F1/361; (IPC1-7): C07D401/06; C07D403/06; C07D417/06; C09K9/02; G02F1/35
Attorney, Agent or Firm:
Tamotsu Otani