Resonant two-photon photorefractive grating in praeseodymium-doped strontium barium niobate with cw lasers

被引：18

作者：

Bai, YS ^{[1
]}

Neurgaonkar, RR ^{[1
]}

Kachru, R ^{[1
]}

机构：

[1] ROCKWELL INT SCI CTR,THOUSAND OAKS,CA 91360

来源：

OPTICS LETTERS | 1996年 / 21卷 / 08期

关键词：

D O I：

10.1364/OL.21.000567

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report experimental observation of resonant two-photon photorefractive gratings in Pr-doped SBN:60. Long-lived 4f intermediate states significantly reduced intensity threshold, thus permitting use of cw lasers for the two-photon transitions. Both two-beam one-color two-photon gratings and three-beam two-color gratings were observed. We expect these results to be extended to other rare-earth dopants. (C) 1996 Optical Society of America.

引用

页码：567 / 569

页数：3

共 8 条

[1]

Dieke G.H., 1968, Spectra and Energy Levels of Rare Earth ions in Crystals

[2]

Kaplyanskii A. A., 1987, SPECTROSCOPY SOLIDS

[3] PHOTOREFRACTIVE EFFECTS IN LINBO3-CR INDUCED BY 2-STEP EXCITATION [J].