Patent ID: 11899316
Assignee: NAGAOKA UNIVERSITY OF TECHNOLOGY
Field: Optics (Instruments)
Classification: CPC G  C | IPC G

Claim 6:
7. The terahertz wave control element according to claim 5, wherein the photoreactive polymer comprises any one photoreactive side chain selected from the group consisting of the following formulae (7) to (10):, wherein A, B, and D each independently represents a single bond, —O—, —CH2—, —COO—, —OCO—, —CONH—, —CH═CH—CO—O—, or —O—CO—CH═CH—;
Y1 represents a ring selected from a monovalent benzene ring, a monovalent naphthalene ring, a monovalent biphenyl ring, a monovalent furan ring, a monovalent pyrrole ring and a monovalent alicyclic hydrocarbon having 5 to 8 carbon atoms, or a group in which the same or different two to six rings selected therefrom are bonded through a bonding group B, wherein a hydrogen atom bonded thereto may be each independently replaced with —COOR0 (wherein R0 represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms), —NO2, —CN, —CH═C(CN)2, —CH═CH—CN, a halogen group, an alkyl group having 1 to 5 carbon atoms, or an alkyloxy group having 1 to 5 carbon atoms;
X represents a single bond, —COO—, —OCO—, —N═N—, —CH═CH—, —C≡C—, —CH═CH—CO—O—, or —O—CO—CH═CH—, and in a case where the number of X is 2, these Xs may be the same or different;
l represents an integer of 1 to 12;
m represents an integer of 0 to 2, and each of m1 and m2 represents an integer of 1 to 3;
n represents an integer of 0 to 12 (when n=0, B represents a single bond);
Y2 represents a group selected from the group consisting of a bivalent benzene ring, a bivalent naphthalene ring, a bivalent biphenyl ring, a bivalent furan ring, a bivalent pyrrole ring, a bivalent alicyclic hydrocarbon having 5 to 8 carbon atoms and a combination thereof, wherein a hydrogen atom bonded thereto may be each independently replaced with —NO2, —CN, —CH═C(CN)2, —CH═CH—CN, a halogen group, an alkyl group having 1 to 5 carbon atoms, or an alkyloxy group having 1 to 5 carbon atoms; and
R represents a hydroxy group, an alkoxy group having 1 to 6 carbon atoms, or has the same definition as Y1.