Parametric downconversion via cascaded optical nonlinearities in an aperiodically poled MgO:LiNbO3 superlattice -: art. no. 161101

被引：10

作者：

Guo, HC ^{[1
]}

Qin, YQ ^{[1
]}

Tang, SH ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 16期

关键词：

D O I：

10.1063/1.2099541

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Quasi-phase-matched parametric downconversion via cascaded optical nonlinearities in an aperiodically poled MgO:LiNbO3 superlattice was studied in theory and experiment. Due to the cascading effect and the abundant reciprocal structure in an aperiodic optical superlattice, multiple-wavelength parametric downconversion in a wide spectrum range can be obtained. Enhancement of the conversion efficiency and output stability through coupling of two nonlinear processes is demonstrated. The result also reveals that the cascaded parametric downconversion process can be used to efficiently downconvert the fundamental wavelength to a longer wavelength of the infrared region. The process can be additionally served as an efficient mechanism to enhance THz wave propagation in a nonlinear optical medium. (C) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

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