HELICITY DEPENDENCE OF OPTICALLY ENCODED 2ND-HARMONIC GENERATION IN GLASSES

被引：5

作者：

DRISCOLL, TJ ^{[1
]}

MACDONALD, RL ^{[1
]}

LAWANDY, NM ^{[1
]}

机构：

[1] BROWN UNIV, DIV ENGN, PROVIDENCE, RI 02912 USA

来源：

PHYSICAL REVIEW A | 1993年 / 48卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.48.3278

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Homogeneous silica-based and heterogeneous semiconductor-doped glasses were optically encoded with circularly polarized beams for efficient second-harmonic generation (SHG) at 532 nm. SHG growth rates for circularly polarized writing beams with both the same and opposite helicity show that chi(3)(0; omega, omega, - 2omega) mixing symmetries are well obeyed in semiconductor microcrystallite-doped glass but not in homogeneous silicate glasses. The radiated second-harmonic free-space mode and chi(2) tensor symmetries for cohelically encoded gratings in SK5 glass determined an electric field which possessed a radial component as well as a component which had a constant direction across the readout beam axis. The results are discussed in light of present theories.

引用

页码：3278 / 3285

页数：8

共 25 条

[1] MODEL FOR 2ND-HARMONIC GENERATION IN GLASS OPTICAL FIBERS BASED ON ASYMMETRIC PHOTOELECTRON EMISSION FROM DEFECT SITES [J].