Optical damage and light-induced absorption in near-stoichiometric LiTaO/sub 3/ crystal

Author

Kitamura, K. ; Furukawab, Y. ; Takekawa, Shunji ; Nakamura, M. ; Alexandrovski, A. ; Fejer, M.M.

Author_Institution

Nat. Inst. for Res. in Inorg. Mater., Ibaraki, Japan

fYear

2001

fDate

11-11 May 2001

Firstpage

255

Lastpage

256

Abstract

Summary form only given. We have investigated photorefractive damage, photoconductivities, and photogalvanic currents of stoichiometry controlled LiTaO/sub 3/ crystal. Near stoichiometric LiTaO/sub 3/ single crystals even without MgO doping exhibited no measurable photorefractive damage at 532 nm of 2 MW/cm/sup 2/ intensity. Green induced IR absorption (GRIIRA) in near stoichiometric LiTaO/sub 3/ was also strongly suppressed.

Keywords

ferroelectric materials; ferroelectric switching; infrared spectra; laser beam effects; lithium compounds; photoconductivity; photorefractive materials; photovoltaic effects; stoichiometry; 532 nm; GRIIRA suppression; LiTaO/sub 3/; LiTaO/sub 3/:MgO; MgO doping; current-voltage characteristics; cw green light irradiation; ferroelectric domain switching; green induced IR absorption; light-induced absorption; near-stoichiometric LiTaO/sub 3/ crystals; optical damage; photoconductivity; photogalvanic currents; photorefractive damage; saturated space charge field; second-harmonic-generation laser irradiation; stoichiometry controlled LiTaO/sub 3/; Absorption; Chemical lasers; Crystallization; Crystals; Frequency conversion; Laser beams; Laser modes; Optical scattering; Optimized production technology; Pulse measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-662-1

Type

conf

DOI

10.1109/CLEO.2001.947773

Filename

947773