摘要:
A nonlinear optical material comprising a compound represented by formula (I) ##STR1## wherein Z.sup.1, Z.sup.2, R.sup.1, X and n are as defined before, or a compound represented by formula (II) ##STR2## wherein Z.sup.11 and Z.sup.12 are as defined before. The compounds of formulae (I) and (II) exhibits high transmittance to blue light and high nonlinear optical effects.
摘要:
A nonlinear optical material comprising a compound represented by formula (I) ##STR1## wherein Z.sup.1, Z.sup.2, R.sup.1, X and n are as defined before, or a compound represented by formula (II) ##STR2## wherein Z.sup.11 and Z.sup.12 are as defined before. The compounds of formula (I) and (II) exhibits high transmittance to blue light and high nonlinear optical effects.
摘要:
A heat-developable light-sensitive material comprising a support having provided thereon a light-sensitive layer comprising a silver halide which is spectrally sensitized with at least one dye represented by formula (I): ##STR1## wherein R.sub.0 and R.sub.1, which may be the same or different, each represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a halogen atom, an alkoxycarbonyl group, an acylamino group, an acyl group, a cyano group, a carbamoyl group, a sulfamoyl group, a carboxyl group, or an acyloxy group; provided that at least one of R.sub.0 and R.sub.1 represents a group other than a hydrogen atom; R.sub.2 represents a hydrogen atom, an alkyl group, or an aryl group; R.sub.3 represents an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an acyl group, an acyloxy group, an alkoxycarbonyl group, or an acylamino group; provided that when R.sub.3 represents an aryl group, R.sub.0 and R.sub.1 each represents a group other than an aryl group; the group represented by R.sub.3 has a value of S of 544 or less wherein S is represented by formula (Z):S=3.536L-2.661B+535.4 (Z)wherein L represents the length of the group R.sub.3 along the axis of the bond between the group R.sub.3 and the center of the benzene nucleus to which the group R.sub.3 is connected, and B represents the smaller value of B.sub.1 +B.sub.4 and B.sub.2 +B.sub.3 wherein B.sub.1, B.sub.2, B.sub.3, and B.sub.4 each represents the width of the group R.sub.3 which are measured at their maximum points and perpendicular to said axis and each other, provided that B.sub.1 is the smallest value and B.sub.2, B.sub.3, and B.sub.4 are successively larger; R.sub.4 and R.sub.5, which may be the same or different, each represents an alkyl group; X represents an anion; and n is 0 or 1, as required to satisfy charge balance.
摘要:
An optical wavelength conversion device is composed of an organic nonlinear optical material, and a cladding layer having a refractive index lower than the refractive index of the organic nonlinear optical material and covering the organic nonlinear optical material, thereby to convert a fundamental wave entering the optical wavelength conversion device to a second harmonic, and to radiate the second harmonic. At least one of device edge faces including edge faces of the organic nonlinear optical material is provided with a shielding layer for shielding the device edge face from ambient atmosphere, thereby to prevent the organic nonlinear optical material from sublimation and deterioration.
摘要:
A novel heat developable light-sensitive material is provided comprising a silver halide spectrally sensitized by a polymethine containing at least one basic nucleus wherein the dye contains, as a group for substituting nitrogen atoms in said basic nucleus, at least one of the groups represented by general formulae (A) and (B): ##STR1##--(CH.sub.2 --.sub.2 NHSO.sub.2 Rwherein m represents an integer of 1 or 2; Y represents an atomic group necessary for the formation of a cyclic imide group; and R represents a C.sub.1-4 alkyl group.In a preferred embodiment, the atomic group represented by Y is selected from the group consisting of a succinic acid imido group, a phthalic acid imido group, an orthobenzosulfimido group, and a maleimido group. The atomic group may be optionally substituted by a halogen atom, a nitro group, a carboxyl group, an acylamino group such as an acetylamino group, or an alkoxycarbonyl amino group such as an ethoxycarbonyl group.
摘要:
A light source composed of a semiconductor laser and a nonlinear optical element which converts a laser beam emitted from the semiconductor laser to a laser beam having a shorter wavelength, disposed in the path of a laser beam produced by the laser, the nonlinear optical element containing a compound represented by formula (I): ##STR1## wherein Z.sup.1, Z.sup.2, X and n are as defined in the specification, of formula (II) ##STR2## wherein Z.sup.3 and Z.sup.4 are defined in the specification, or an acid adduct therefore. the nonlinear optical element exhibits high transmittances to blue light and generates a laser beam having a shorter wavelength than that of the laser applied.
摘要:
A process for forming an image is provided, comprising imagewise exposing a photosensitive material comprising on a support a photosensitive silver halide, a sensitizing dye having general formula (I) and/or (II), and a compound which forms or releases a mobile dye in proportion or counter-proportion to the reduction of the photosensitive silver halide into silver by heating, and transferring the resulting mobile dye to a dye-fixing element in the presence of a hydrophilic solvent,wherein formulas (I) and (II) are: ##STR1## wherein Z.sup.1 and Z.sup.2 represent a group of non-metallic atoms necessary to form a 5- or 6-membered heterocyclic ring; R.sup.1 and R.sup.2 represent a substituted or unsubstituted alkyl group; L.sup.1, L.sup.2, and L.sup.3 represent a substituted or unsubstituted methine group; p and q are equal to 0 or 1; m is equal to 0, 1, 2, or 3; X1.sup..crclbar. represents an anion; k is equal to 0 or 1, with the proviso that the number of organic acid groups contained in the molecule except X1.sup..crclbar. is up to 1, andZ.sup.3 has the same meaning as Z.sup.1 and Z.sup.2 ; R.sup.3 has the same meaning as R.sup.1 and R.sup.2 except an alkyl group having an acid group; L.sup.4 and L.sup.5 have the same meaning as L.sup.1, L.sup.2, and L.sup.3 ; Z.sup.4 represents a group of non-metallic atoms necessary to form a 5- or 6-membered heterocyclic ring; R.sup.4 represents a hydrogen atom, or a substituted or unsubstituted alkyl, aryl or heterocyclic group; r has the same meaning as p and q; and n has the same meaning as m.
摘要:
A heat-developable color light-sensitive material is provided comprising on a support at least a light-sensitive silver halide emulsion, a binder, a compound capable of producing or releasing a mobile dye in direct or inverse proportion to the reaction of the light-sensitive silver halide being reduced into silver at elevated temperatures, and a dye having the general formula: ##STR1## wherein each of R.sup.1 and R.sup.2 is a substituted or unsubstituted alkyl or alkenyl group,R.sup.3 is a hydrogen atom, or substituted or unsubstituted alkyl, alkoxy, aryl or alkenyl group,each of X.sup.1, X.sup.2, X.sup.3, and X.sup.4 is a hydrogen atom, halogen atom, hydroxyl, carboxyl, or substituted or unsubstituted alkyl, alkoxy, alkoxycarbonyl, acyl, acyloxyl, aryl, amino, or acylamino group,X.sup.1 and X.sup.2, and X.sup.3 and X.sup.4 can be mutually combined to form a benzene ring,A.sup.- is an anion, andn is equal to 0 or 1.
摘要:
A heat-developable photographic material having improved preservability, which comprises a support having thereon at least one heat-developable photgraphic layer, said photographic material containing a dye represented by formula (I) ##STR1## wherein R.sub.1 and R.sub.3 each represents an unsubstituted or substituted alkyl group or alkenyl group;R.sub.2 represents a hydrogen atom or an unsubstituted or substituted alkyl group, aryl group, alkenyl group, or aromatic heterocyclic group;R.sub.4 through R.sub.7 each represents a hydrogen atom or an unsubstituted or substituted alkyl group, aryl group, or alkenyl group; or R.sub.4 and R.sub.6 together form an unsubstituted or substituted alkylene group or alkenylene group;X.sub.1 represents an oxygen atom, a sulfur atom, or the group ##STR2## wherein R.sub.8 represents a hydrogen atom, an unsubstituted or substituted alkyl group, aryl group, or alkenyl group;Y.sub.1 represents an atomic group forming an unsubstituted or substituted pyridine or quinoline ring together with nitrogen and carbon atoms represented in formula (I);Y.sub.2 represents an atomic group forming an unsubstituted or substituted heterocyclic ring, together with carbon and nitrogen atoms represented in formula (I);X.sub.2 represents an anion; andn.sub.1 represents 0 or 1.
摘要:
Provided is a low-cost polyimide, containing cyclohexane diamine as a diamine unit, that has a low thermal expansion coefficient. Said block polyimide contains blocks having the repeating structural unit shown in formula (1A) and blocks having the repeating structural unit shown in formula (1B). This block polyimide is preferably obtained by imidizing a block polyamide acid imide that contains blocks having the repeating structural unit shown in formula (2A) and blocks having the repeating structural unit shown in formula (2B).