Noncollinear second-harmonic generation in periodically poled KTiOPO4 excited by the Bessel beam

被引：49

作者：

Piskarskas, A

Smilgevicius, V

Stabinis, A

Jarutis, V

Pasiskevicius, V

Wang, S

Tellefsen, J

Laurell, F

机构：

[1] Vilnius State Univ, Laser Res Ctr, LT-2040 Vilnius, Lithuania

[2] Royal Inst Technol, Dept Phys Opt, S-10044 Stockholm, Sweden

来源：

OPTICS LETTERS | 1999年 / 24卷 / 15期

关键词：

D O I：

10.1364/OL.24.001053

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Frequency doubling in periodically poled KTiOPO4 excited by the Bessel-like distribution of the fundamental radiation has been investigated. Theoretical analysis and experiments show that the use of noncollinear geometry provides new possibilities for engineering nonlinear interactions in periodically poled crystals. We demonstrate conversion of the ring-shaped fundamental mode to the axial second-harmonic beam with 30% efficiency for 220-mu J Q-switched Nd:YAG pulses. (C) 1999 Optical Society of America.

引用

页码：1053 / 1055

页数：3

共 8 条

[1] Phase matching and harmonic generation in Bessel-Gauss beams [J].