OPTICALLY NONLINEAR ACTIVE WAVEGUIDE MATERIAL CONTAINING DONER GROUP AND ACCEPTOR GROUP CONTAINING TRIPHENYL CARBINOL

摘要

PURPOSE: To produce an optically nonlinear active material having a high overpolarization rate by forming an optically nonlinear active dopant of triphenyl carbinol contg. a donor group and acceptor group. ;CONSTITUTION: The optically nonlinear active dopant is the triphenyl carbinol contg. the donor group and acceptor group. In such a case, the dopant includes triphenyl carbinols and the methyl ethers of the triphenyl carbinols. The three arom. rings in the dopant TPC(triphenyl carbinol) are conjugated with the central sp³ hybrid carbon atom. The TPC having the donor group and acceptor group substd. in the respective second position and fifth position of the arom. ring has the high overpolarization rate (B). Further, the dopant of these kinds contg. donor-π-acceptor units more than one in proximity in one molecule has charge transfer absorption band wavelength nearly equal with the dopant having just one donor-π-acceptor unit.;COPYRIGHT: (C)1995,JPO