Yttrium calcium oxyborate YCa/sub 4/O(BO/sub 3/)/sub 3/ for blue and UV generation

Author

Yoshimura, Masashi ; Kobayashi, Takehiko ; Furuya, Hiroyuki ; Mori, Yojiro ; Sasaki, T.

Author_Institution

Dept. of Electr. Eng., Osaka Univ., Japan

fYear

1998

fDate

3-8 May 1998

Firstpage

270

Lastpage

271

Abstract

Summary form only given. In recent years, many researchers have been devoted to the development of visible and UV lasers for industrial and medical applications. Although CdCa/sub 4/O(BO/sub 3/)/sub 3/ (GdCOB) presented by G. Aka ct al. is an attractive crystal that possesses a moderate optical nonlinear coefficient, a sufficient mechanical hardness, and a nonhygroscopicity, it cannot generate third-harmonic generation (THG) of the Nd:YAG fundamental because of small birefringence. The third harmonic could be obtained by using a YCa/sub 4/O(BO/sub 3/)/sub 3/ (YCOB) crystal, which is an isomorph of GdCOB. Furthermore, we succeeded to grow mixed crystals of Gd/sub x/Y/sub 1-x/Ca/sub 4/O(BO/sub 3/)/sub 3/ (O\n\n\t\t

Keywords

calcium compounds; crystal growth from melt; gadolinium compounds; light sources; optical harmonic generation; optical materials; optical phase matching; yttrium compounds; 0.83 to 0.97 mum; CdCa/sub 4/O(BO/sub 3/)/sub 3/; Gd/sub x/Y/sub 1-x/Ca/sub 4/O(BO/sub 3/)/sub 3/; GdYCa/sub 4/O(BO/sub 3/)/sub 3/; Nd:YAG fundamental; RF-heating Czochralski method; UV generation; UV lasers; YAG:Nd; YAl5O12:Nd; YCa/sub 4/O(BO/sub 3/)/sub 3/; birefringence; blue generation; compositional parameter; industrial applications; isomorph; mechanical hardness; medical applications; mixed crystals; noncritical phase-matching wavelength; nonhygroscopicity; optical nonlinear coefficients; second-harmonic generation; third harmonic; third-harmonic generation; visible lasers; Biomedical equipment; Biomedical optical imaging; Birefringence; Calcium; Crystals; Laser modes; Medical services; Nonlinear optics; Optical harmonic generation; Yttrium;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

San Francisco, CA, USA

Print_ISBN

1-55752-339-0

Type

conf

DOI

10.1109/CLEO.1998.676153

Filename

676153