Generation of coherent terahertz radiation with multifrequency modes in a Fibonacci optical superlattice

被引：25

作者：

Qin, YQ ^{[1
]}

Su, H ^{[1
]}

Tang, SH ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 06期

关键词：

D O I：

10.1063/1.1598644

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate theoretically the generation of coherent narrow-band terahertz (THz) radiation with multifrequency modes in an optical superlattice produced by quasiperiodically poled ferroelectric crystal. The superlattice consists of two building blocks A and B, in which each containing a pair of antiparallel 180degrees ferroelectric domains, arranged as a Fibonacci sequence. Second-order nonlinear optical rectification of femtosecond pulses gives rise to a THz wave form whose multifrequency modes are determined by the quasiperiodic structure properties. The relationship between multifrequency modes terahertz generation and Fibonacci structure parameters is also analyzed and studied. (C) 2003 American Institute of Physics.

引用

页码：1071 / 1073

页数：3

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