摘要
构造和研究四元异质结构光子晶体(ABC)6D(ABC)6的光传输特性,发现A、B、C和D四种薄膜介质的物理厚度dA、dB、dC和dD可灵敏地调节光子晶体透射峰的波长位置,实现短波和长波双通道的光开关功能,而且不同通道光开关对相同薄膜介质光学厚度的响应灵敏度不同。对于短波通道光开关,随着各薄膜介质层物理厚度dA、dB、dC和dD分别增大,光开关的效应向长波方向移动,其中光开关效应对dC的响应最敏感,对dB响应次之,对dA响应最弱。对于长波通道光开关,随着dA、dB、dC和dD分别增大,光开关的效应也向长波方向移动,其中光开关效应对dC的响应最敏感,对dD响应次之,对dA响应最弱。四元异质结构光子晶体的这种光学传输特性为利用光子晶体设计高灵敏度的新型光学开关或滤波器件等提供参考。
This research constructed and studied the optical transmission characteristics of heterostructure photonic crystal （ABC）6D （ABC）6, that the physical thicknesses dA, da, dc and do of A, B, C and D can be used to adjust the transmission peak wavelength in the heterostructure photonic, to achieve short-wave and long-wave dual-channel optical switching, and the response sensitivity are different when the optical thin films thickness is changed by different dielectric medium. For short-wave channel optical switch, the transmission peak wavelengh will be increased with the thickness of d,, da, dc and dD become thicker, this change is most sensitive to the response of dc, second to dB, and weakest to dA. For long-wave channel optical switch, with dA, dB, dc and dD increasing respectively, the transmission peak wavelengh moves to the long wave direction, this change is most sensitive to the response of arc, second to do, and weakest to rig. The optical transmission characteristics of quaternary heterogeneous structure photonic crystal can provide a reference for the photonic crystal design of the new optical switch or filter devices.
出处
《红外与激光工程》
EI
CSCD
北大核心
2017年第B12期120-124,共5页
Infrared and Laser Engineering
基金
国家自然科学基金(51161003)
广西高校科学技术研究项目(KY2015YB258
KY2016LX287)
国家级
广西区级大学生创新训练计划项目(201710605012
201710605065
201710605066)
关键词
光开关
光学滤波
异质结构
光子晶体
传输矩阵法
photonic switch
optical filtering
heterostructure
photonic crystal
transfer matrix method
