Experimental Demonstration of a Low-Pass Spatial Filter Based on a One-Dimensional Photonic Crystal with a Defect Layer
SONG Dong-Mo1, TANG Zhi-Xiang1**, ZHAO Lei2, SUI Zhan2, WEN Shuang-Chun1, FAN Dian-Yuan1
1Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education, College of Information Science and Engineering, Hunan University, Changsha 410082 2Research Center of Laser Fusion, Chinese Academic of Engineering Physics, Mianyang 621900
Abstract：It is predicted theoretically that a one-dimensional photonic crystal (PC) with a defect layer has an incident-angle dependent transmittance. Growing a multilayer of this PC structure on a BK7 glass substrate by means of thermal vacuum evaporation, we have experimentally measured its transmittance at near-infrared wavelength. The measured transmittance are in good agreement with the theoretical prediction if the influence of random errors in the layer thicknesses resulting from the deposition process is excluded. This work suggests that a one-dimensional PC with a defect layer can be fabricated as a two-dimensional near-field low-pass spatial filter.
. [J]. 中国物理快报, 2013, 30(4): 44206-044206.
SONG Dong-Mo, TANG Zhi-Xiang, ZHAO Lei, SUI Zhan, WEN Shuang-Chun, FAN Dian-Yuan. Experimental Demonstration of a Low-Pass Spatial Filter Based on a One-Dimensional Photonic Crystal with a Defect Layer. Chin. Phys. Lett., 2013, 30(4): 44206-044206.
2013, Vol. 30 
