1. J. D. Joannopoulos, R. D. Meade, and J. N. Winn, Photonic Crystals: Molding the Flow of Light (Princeton University Press, Princeton, NJ, United States, 1995).
2. Photonic Crystals: Advances in Design, Fabrication, and Characterization, Ed. by K. Busch, S. Lölkes, R. B. Wehrspohn, and H. Föll (Wiley, Weinheim, 2004).
3. V. F. Shabanov, S. Ya. Vetrov, and A. V. Shabanov, Optics of Real Photonic Crystals: Liquid-Crystal Defects and Inhomogeneities (Siberian Branch, Russian Academy of Sciences, Novosibirsk, 2005) [in Russian].
4. S. Ya. Vetrov and A. V. Shabanov, Zh. Eksp. Teor. Fiz. 120(5), 1126 (2001) [JETP 93 (5), 977 (2001)].
5. R. Ozaki, T. Matsui, M. Ozaki, and K. Yoshino, Jpn. J. Appl. Phys. 41, L1482 (2002).