Optical properties of an ionic-type phononic crystal

被引：141

作者：

Lu, YQ

Zhu, YY

Chen, YF

Zhu, SN

Ming, NB ^{[1
]}

Feng, YJ

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Dept Elect Sci & Engn, Nanjing 210093, Peoples R China

来源：

SCIENCE | 1999年 / 284卷 / 5421期

关键词：

D O I：

10.1126/science.284.5421.1822

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

An ionic-type phononic crystal composed of two ferroelectric media with opposite spontaneous polarization aligned periodically in a superlattice structure was studied theoretically and experimentally, The coupling between vibrations of the superlattice and the electromagnetic waves results in various Long-wavelength optical properties, such as microwave absorption, dielectric abnormality, and polariton excitation, that exist originally in ionic crystals. The results show that this artificial crystal structure can be used to simulate the microscopic physical processes in real crystals.

引用

页码：1822 / 1824

页数：3

共 32 条

[1]

Born M., 1954, DYNAMICAL THEORY CRY

[2] Photonic band gaps in two dimensional photonic quasicrystals [J].