[1] A. Mekis, J. C. Chen, I. Kurland et al.. High transmission through sharp bends in photonic crystal waveguides[J]. Phys. Rev. Lett., 1996, 77(18): 3787~3790
[2] R. D. Meade, A. Devenyi, J. D. Jpannopoulos et al.. Novel applications of photonic band gap materials: Low-loss bends and high Q cavlties[J]. J. Appl. Phys., 1994, 75(9 ): 4753~4755
[3] E. H. Khoo, T. H. Cheng, A. Q. Liu. Transmitting light efficiently on photonic crystal surface waveguide bend[J]. Appl. Phy. Lett., 2007, 91(17): 171109-1~171109-3
[4] E. Miyai, M. Okano, M. Mochizuki et al.. Analysis of coupling between two-dimensional photonic crystal waveguide and external waveguide[J]. Appl. Phy. Lett., 2002, 81(20): 3729~3731
[5] F. S. S. Chien, J. B. Tu, W. F. Hsieh et al.. Tight-binding theory for coupled photonic crystal waveguides[J]. Phy. Rev. B, 2007, 75(12): 125113-1~125113-8