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《Laser & Infrared》 2011-03
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T-shaped photonic crystal filter with a ring resonator

WU Li-heng,WANG Ming-hong,XU Ming-xing(School of Physics Science & Information Engineering,Liaocheng University,Liaocheng 252059,China)  
In this paper,a structure of T-shaped photonic crystal filter based on ring resonators is presented.We have investigated the transmission properties of the filter by using finite-difference time-domain method,and analyze the effects of photonic crystal structural parameters to its transmission properties.The results of analysis show that this structure has properties of tunable switch wavelength,high normalized transmission,and a large bandwidth.It has application value in the designs of photonic crystal integration and optical communication devices and so on.
【Fund】: 国家自然科学基金项目(No.60871047)资助
【CateGory Index】: TN713.91
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