Title :
New nonlinear optical crystal GdYCOB for noncritically phase-matched UV generation
Author :
Yoshimura, Masashi ; Furuya, Hiroyuki ; Yamada, Isao ; Murase, K. ; Nakao, Hayato ; Yamazaki, M. ; Mori, Yojiro ; Sasaki, T.
Author_Institution :
Dept. of Electr. Eng., Osaka Univ., Japan
Abstract :
Summary form only given. In previous work, we reported that yttrium calcium oxyborate YCa/sub 4/O(BO/sub 3/)/sub 3/ (YCOB), which was an isomorph of GdCOB, was phase matchable for third-harmonic generation (THG) of Nd:YAG laser by type I sum frequency mixing, and it possessed moderate optical nonlinearity, sufficient mechanical hardness, and nonhygroscopicity. Recently, we succeeded to grow a substitutional solid solution of Gd/sub x/Y/sub 1-x/Ca/sub 4/O(BO/sub 3/)/sub 3/ (GdYCOB) with uniform composition. We could achieve a noncritically phase-matching (NCPM) at room temperature for THG of Nd:YAG laser with this crystal at x=0.24.
Keywords :
gadolinium compounds; optical harmonic generation; optical materials; optical phase matching; yttrium compounds; Gd/sub x/Y/sub 1-x/Ca/sub 4/O(BO/sub 3/)/sub 3/; GdYCOB; GdYCa/sub 4/O(BO/sub 3/)/sub 3/; Nd:YAG laser; THG; YCa/sub 4/O(BO/sub 3/)/sub 3/; isomorph; mechanical hardness; moderate optical nonlinearity; noncritically phase-matched UV generation; noncritically phase-matching; nonhygroscopicity; nonlinear optical crystal; room temperature; substitutional solid solution; third-harmonic generation; type I sum frequency mixing; uniform composition; yttrium calcium oxyborate; Calcium; Frequency conversion; Laser modes; Nonlinear optics; Optical frequency conversion; Optical harmonic generation; Optical mixing; Solids; Temperature; Yttrium;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-595-1
DOI :
10.1109/CLEO.1999.834550
