THERMAL HOLOGRAM FIXING IN PURE AND DOPED KNBO3 CRYSTALS

被引：47

作者：

MONTEMEZZANI, G

GUNTER, P

机构：

[1] Institute of Quantum Electronics, Swiss Federal Institute of Technology, Zürich, CH-8093, ETH Hönggerberg

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1990年 / 7卷 / 12期

关键词：

D O I：

10.1364/JOSAB.7.002323

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate holographic fixing by means of a thermal cycling procedure in pure and doped photorefractive KNbO3 crystals. At elevated temperatures (70-100°C) the photoinduced grating is compensated for by a secondary grating that is formed by charge carriers whose thermal activation energy is -1.0 eV The secondary carriers are stable at room temperature and form the fixed grating after cooling the crystal. They are believed to be represented by ions or ion vacancies. By using our fixing mechanisms the holographic storage time in KNbO3 can be increased by a factor of 106. © 1990 Optical Society of America.

引用

页码：2323 / 2328

页数：6

共 32 条

[1]

AMOEDI JJ, 1971, APPL PHYS LETT, V18, P540

[2] THERMAL FIXING OF HOLOGRAPHIC GRATINGS IN BI12SIO20 [J].

ARIZMENDI, L .

JOURNAL OF APPLIED PHYSICS, 1989, 65 (02) :423-427

[3] ELECTROCOLORATION IN SRTIO - VACANCY DRIFT AND OXIDATION-REDUCTION OF TRANSITION METALS [J].

BLANC, J ;

STAEBLER, DL .

PHYSICAL REVIEW B, 1971, 4 (10) :3548-&

[4]

BONDARENKO EI, 1985, FIZ TVERD TELA+, V27, P629

[5] QUASI-NONDESTRUCTIVE READOUT OF HOLOGRAPHICALLY STORED INFORMATION IN PHOTOREFRACTIVE BI12SIO20 CRYSTALS [J].

DELBOULBE, A ;

FROMONT, C ;

HERRIAU, JP ;

MALLICK, S ;

HUIGNARD, JP .

APPLIED PHYSICS LETTERS, 1989, 55 (08) :713-715

[6] OH STRETCHING VIBRATIONS IN MONODOMAIN KNBO3 [J].

FORSTER, A ;

HESSE, H ;

KAPPHAN, S ;

WOHLECKE, M .

SOLID STATE COMMUNICATIONS, 1986, 57 (05) :373-375

[7] HIGH-SENSITIVITY READ-WRITE VOLUME HOLOGRAPHIC STORAGE IN REDUCED KNBO3 CRYSTALS [J].

GUNTER, P ;

KRUMINS, A .

APPLIED PHYSICS, 1980, 23 (02) :199-207

[8] COHERENT-LIGHT AMPLIFICATION AND OPTICAL-PHASE CONJUGATION IN PHOTOCONDUCTIVE ELECTROOPTIC MATERIALS [J].

GUNTER, P .

FERROELECTRICS, 1982, 40 (1-2) :43-47

[9] PHOTOREFRACTIVE EFFECTS AND PHOTOCURRENTS IN KNBO3-FE [J].

GUNTER, P ;

MICHERON, F .

FERROELECTRICS, 1978, 18 (1-3) :27-38

[10] ELECTROOPTICAL PROPERTIES OF KNBO3 [J].

GUNTER, P .

OPTICS COMMUNICATIONS, 1974, 11 (03) :285-290

← 1 2 3 4 →