High-gain photorefractive polymers

被引：2

作者：

Hendrickx, E ^{[1
]}

Herlocker, J ^{[1
]}

Maldonado, JL ^{[1
]}

Guillemet, G ^{[1
]}

Rockel, H ^{[1
]}

Erskine, L ^{[1
]}

Marder, SR ^{[1
]}

Kippelen, B ^{[1
]}

Peyghambarian, N ^{[1
]}

机构：

[1] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA

来源：

POLYMER PHOTONIC DEVICES | 1998年 / 3281卷

关键词：

photorefractive polymers; diffraction; beam coupling;

D O I：

10.1117/12.305430

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

We report on the photorefractive properties of polymer composites based on the dye 2, N, N-dihexylamino-7-dicyanomethylidenyl-3, 4, 5, 6, 10-pentahydronaphthalene (DHADC-MPN). At 633 nm and with 2,4,7-trinitrofluorenone as a sensitizer, the polyvinylcarbazole-based composites show complete internal diffraction at applied electric fields as low as E-pi/2 = 30 V/mu m. The sensitivity of the composite could be extended into the infrared by using (2,4,7-trinitro-9-fiuorenylidene)malonitrile as a sensitizer, and at 830 nm complete internal diffraction occurred at an applied field of E-pi/2 = 59 V/mu m, Finally, by using DHADC-MPN as a trifunctional dopant in an inert matrix, we have achieved a dynamic range of Delta n = 0.0085 and a net two-beam coupling gain of Gamma = 202 cm(-1) at an applied field of 50 V/mu m and at 633 nm. The composites are thermally stable or have shelf lifetimes of at least several years at room temperature.

引用

页码：268 / 276

页数：9