Modulation of photonic crystal optical transmission characteristics by symmetrical double defects
-
摘要: 为研究和设计高性能、高品质的新型光学滤波和光学开关等器件，利用传输矩阵法理论，研究了对称双缺陷对光子晶体（AB）5ACn（BABAB）CnA（BA）5光传输特性的调制规律。结果发现，对称双缺陷一维光子晶体（AB）5ACn（BABAB）CnA（BA）5可实现高透射率高品质的光学滤波和光学开关功能。随着缺陷周期数n和光波入射角的增大，双滤波通道向短波方向移动产生蓝移现象，且两滤波通道之间的距离变短，但两滤波通道蓝移的速度和双通道间距变小速度不一样。随着缺陷物理厚度dC和折射率nC的增大，光子晶体双滤波通道向长波方向移动产生红移现象，两滤波通道之间的距离变大，但两滤波通道红移速度和双通道间距变大的速度不同。随着缺陷周期数n、物理厚度dC、折射率nC和光波入射角的增大，双通道滤波的透射率保持100%不变。对称双缺陷光子晶体的光传输特性，可指导高透射率、高性能和高品质的双通道光学滤波器件，以及高灵敏度的光学开关的研究和设计。Abstract: The transfer matrix method was used to study and design new optical filters and optical switches with high performance and quality, the modulation of optical transmission characteristics of photonic crystal (AB)5ACn(BABAB)CnA(BA)5 by symmetrical double defects were also studied. The result showed that symmetric double defect one-dimensional photonic crystal (AB)5ACn(BABAB)CnA(BA)5 can achieve the function with high transmission, high quality optical filtering and optical switchings. Besides, with the increase of defect period n and incident angle , the blue shift phenomenon occured when the dual-filter channel moved towards the short wave direction, and the distance between the two channels became shorter, but the speed of blue shift of the two channels was different from that of the two channels. With the increase of defect physical thickness dC and refractive index nC, the photonic crystal dual-filter channel moved towards long-wave direction, resulting in red shift phenomenon, and the distance between the two filter channels increased, the redshift speed of the two filter channels was different from that of the distance between the two channels. With the increase of defect period n, physical thickness dC, refractive index nC and incident angle , the transmittance of the two-channel filter remained unchanged at 100%. The optical transmission characteristics of symmetrical double-defect photonic crystals can guide the research and design of high transmittance, high performance and high quality dual-channel optical filters and high sensitivity optical switches.
-
Key words:
- symmetrical double defect /
- photonic crystal /
- transmission spectrum /
- filtering /
- optical switch
-
[1] Pan Jihuan, Su An, Lv Linshi, et al. Tunable channel filter function of four-heterostructure photonic crystal[J]. Infrared and Laser Engineering, 2017, 46(S1):S121001. (in Chinese) [2] Yuan Jun, Zhang Zhengping, Xie Yiyang. Study of single-fundamental-mode square-lattice photonic crystal vertical cavity surface emitting laser[J]. Infrared and Laser Engineering, 2018, 47(6):0606005. (in Chinese) [3] Liu Jie, Tie Shengnian, Lu Huidong. Multi-channel drop filter based on two-dimensional photonic crystal[J]. Optics and Precision Engineering, 2016, 24(5):1021-1027. (in Chinese) [4] Feng Di, Zhao Zhengqi, Fang Qimeng, et al. Analysis of end face damage in lapping for photonic crystal fiber[J]. Optics and Precision Engineering, 2017, 25(11):2895-2903. (in Chinese) [5] Yang Jing, Gong Cheng, Zhao Jiayu, et al. Fabrication of terahertz device by 3D printing technology[J]. Chinese Optics, 2017, 10(1):77-85. (in Chinese) [6] Li Tianqi, Mao Xiaojie, Lei Jian, et al. Analysis and comparison of solid-state lasers and fiber lasers on the coupling of rod-type photonic crystal fiber[J]. Chinese Optics, 2018, 11(6):0958-0973. (in Chinese) [7] Liu Jiping, Li Haibo, Meng Xiangdong, et al. Eigenfield distribution of two-dimensional functional photonic crystals with point defects[J]. Chinese J Lasers, 2018, 45(8):0803001. (in Chinese) [8] Su An, Wang Gaofeng, Meng Chengju, et al. Light propagation characteristic of dual defect microcavity of photonic crystal[J]. Infrared and Laser Engineering, 2017, 46(6):0620004. (in Chinese) [9] Su An, Gao Yingjun. Light propagation characteristics of one-dimensional photonic crystal with double-barrier quantum well[J]. Acta Physica Sinica, 2012, 61(23):234208. (in Chinese) [10] Su An, Meng Chengju, Gao Yingjun, et al. Modulation of activated impurity on filter property of photonic crystal quantum well[J]. Chinese Journal of Lasers, 2014, 41(3):0306001. (in Chinese) [11] Meng Chengju, Su An, Gao Yingjun. Photonic crystal quantum well with active impurity possessing high-efficient optical filtering and amplifying functions[J]. Infrared and Laser Engineering, 2013, 42(12):3702-3707. (in Chinese) [12] Chen Ying, Cao Huiying, Han Shuaitao, et al. Sensing property of photonic crystal fabry-prot heterogeneous structure with absorption medium[J]. Acta Optica Sinica,2017, 37(2):0223003. (in Chinese) -
点击查看大图
计量
- 文章访问数: 423
- HTML全文浏览量: 44
- PDF下载量: 34
- 被引次数: 0
下载:
