摘要
为了在可见及近红外波段得到具有良好带隙结构的三维光子晶体,利用传输矩阵法分析了MgF2、Ta2O5以及Ta2O5/MgF2异质结构三维光子晶体的带隙性质.结果表明:Ta2O5/MgF2异质结构三维光子晶体在820～1020nm的近红外波段TM模式下具有不受入射光方向影响的全方位光子带隙.该结构有望用于制作近红外光波段的偏振器件.
In order to obtain an excellent photonic band gaps of visible and near infrared region,the formation of band gaps of MgF2、Ta2O5 and Ta2O5/MgF2 heterostructure three-dimensional photonic crystal is exhibited and confirmed by calculation of the transfer matrix method.It is shown that the three-dimensional photonic crystal with the heterostructure of Ta2O5/MgF2 has omnidirectional band gaps without influence of incident angles around 820~1 020 nm of near infrared region with TM polarization.The structure should enable new applications for polarizing devices.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2010年第5期839-841,共3页
Acta Photonica Sinica
基金
国家自然科学基金(50874079)
山西省自然科学基金(200611053
200921026)资助
关键词
光子晶体
传输矩阵法
异质结构
偏振器件
Photonic crystals
Transfer matrix method
Heterostructure
Polarizing devices
