摘要An annular photonic crystal is used to design a novel kind of polarization beam splitter based on the negative refraction effect. Since TE and TM polarization waves can be excited at the first and second bands, respectively, they will result in different refractive angles and make separation possible. To improve the splitting efficiency, the cut-off treatment along the Γ–M direction and the antireflection coating are introduced to enlarge the separation angle and to decrease the reflection loss. Simulation results show that the proposed polarization beam splitter has a tunable working incident angle that is in the range of 18°–26°. In particular, when the incident angle is 20°, over 90% transmissions can be achieved for both TE and TM polarizations in a wide working frequency range from 0.279(2πc/a) to 0.287(2πc/a).
Abstract：An annular photonic crystal is used to design a novel kind of polarization beam splitter based on the negative refraction effect. Since TE and TM polarization waves can be excited at the first and second bands, respectively, they will result in different refractive angles and make separation possible. To improve the splitting efficiency, the cut-off treatment along the Γ–M direction and the antireflection coating are introduced to enlarge the separation angle and to decrease the reflection loss. Simulation results show that the proposed polarization beam splitter has a tunable working incident angle that is in the range of 18°–26°. In particular, when the incident angle is 20°, over 90% transmissions can be achieved for both TE and TM polarizations in a wide working frequency range from 0.279(2πc/a) to 0.287(2πc/a).
WU Hong, JIANG Li-Yong, JIA Wei, LI Xiang-Yin**. Polarization Beam Splitter Based on an Annular Photonic Crystal of Negative Refraction[J]. 中国物理快报, 2012, 29(3): 34203-034203.
WU Hong, JIANG Li-Yong, JIA Wei, LI Xiang-Yin. Polarization Beam Splitter Based on an Annular Photonic Crystal of Negative Refraction. Chin. Phys. Lett., 2012, 29(3): 34203-034203.
[1] Luo C, Johnson S G, Joannopoulos J D and Pendry J B 2002 Phys. Rev. B 65 201104
[2] Jiang L Y, Wu H, Zheng G G and Li X Y 2012 Appl. Phys. Express 5 012202
[3] Ruan Z and He S 2005 Opt. Lett. 30 2308
[4] Kang X L, Li G J and Li Y P 2009 J. Opt. Soc. Am. B 26 60
[5] Ao X Y and He S L 2005 Opt. Lett. 30 2152
[6] Mocella V, Dardano P, Moretti L and Rendina I 2005 Opt. Express 13 7699
[7] Zabelin V, Dunbar L A, Le Thomas N, Houdre R, Kotlyar M V, O'Faolain L and Krauss T F 2007 Opt. Lett. 32 530
[8] Park J M, Lee S G, Park H R and Lee M H 2010 J. Opt. Soc. Am. B 27 2247
[9] Lu M F, Liao S M and Huang Y T 2010 Appl. Opt. 49 724
[10] Yu T B, Huang J H, Liu N H, Yang J Y, Liao Q H and Jiang X Q 2010 Appl. Opt. 49 2168
[11] Zhang X, Chen S W, Liao Q H, Yu T B, Liu N H and Huang Y Z 2011 Chin. Phys. Lett. 28 084201
[12] Kurt H and Citrin D S 2005 Opt. Express 13 10316
[13] Hou J, Gao D S, Wu H M and Zhou Z P 2009 Opt. Commun. 282 3172
[14] Shi P, Huang K, Kang X L and Li Y P 2010 Opt. Express 18 5221
[15] Wu H, Jiang L Y, Jia W and Li X Y 2011 J. Opt. 13 095103
[16] Smigaj W, Gralak B, Pierre R and Tayeb G 2009 Opt. Lett. 34 3532
[17] Park J M, Lee S G, Park H R and Lee M H 2010 Opt. Express 18 13083
2012, Vol. 29 
