Spectral Properties of Two-Dimensional Photonic Crystal Quantum Well Structures
WANG Dong-dong,WANG Yong-sheng*,XU Zheng,DENG Li-er,ZHANG Chun-xiu,HAN Xiao
Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiaotong University, Beijing 100044, China
Abstract：In the present paper, the spectral properties of two-dimensional (2D) photonic crystal quantum well structures were studied numerically. The structures consist of a 2D photonic crystal (PC) with square lattice of parallel dielectric circular columns in air and some middle layers of columns are removed. Similar to the electrons in semiconductor quantum wells, the photonic bandgap (PBG) in PC can act as a potential barrier to photons, which gives rise to quantized photonic states in the PBG region. Photonic band structures were calculated using plane wave expansion method and transmission spectra were obtained using transfer matrix method. The results show that discrete transmission peaks appear in PBG region. More transmission peaks arise with the increase of the well layer and the strength decreases with the increase in the potential layer width. The relationships between the frequency of transmission peaks and the width of well layer were also discussed.
[1] Yablonovitch E. Phys. Rev. Lett., 1987, 58(20): 2059. [2] John S. Phys. Rev. Lett., 1987, 58(23): 2486. [3] ZHOU Ren-long, PENG Jing-cui, LI Hong-jian, et al(周仁龙，彭景翠, 李宏建, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2003，23(4): 657. [4] Mendez E E, von Klitzing K. Physics and Applications of Quantum Wells and Superlattices. New York: Plenum, 1987. [5] Jiang Y, Niu C, et al. Phys. Rev. B., 1999，59: 9981. [6] Feng Ch. Sh., et al. Solid State Communications, 2005，135: 330. [7] Qin Q, Lu H, et al. Appl. Phys. Lett., 2003，82(26): 4654. [8] Emanuel Istrate, et al. Phys. Rev. B., 2002，66: 075121. [9] Xiaoshuang Chen, et al. Solid State Communications, 2003，127: 541. [10] Guo S, Albin S. Optical Express, 2003，11: 167.
