[1] Y. M. Huang, L. Chen. Correlation of liquid crystal alignment properties on holographic gratings with the thickness of a nematic liquid crystal[J]. Thin Solid Films, 2006, 515(4): 2026～2030

[2] D. R. Link, G. Natale, R. Shao et al.. Spontaneous formation of macroscopic chiral domains in a fluid smectic phase of achiral molecules[J]. Science, 1997, 278(5345): 1924～1927

[3] G. Heppke, D. Moro. Chiral order from achiral molecules[J]. Science, 1998, 279(5358): 1872～1873

[4] J. Thisayukta, H. Niwano, H. Takezoe et al.. Enhancement of twisting power in the chiral nematic phase by introducting achiral banana-shaped molecules[J]. J. Am. Chem. Soc., 2002, 124(12): 3354～3358

[5] R. Amaranatha Reddy, B. K. Sadashiva. Occurance of the B7 mesophase in two homologous series of seven-ring achiral compounds composed of banana-shaped molecules[J]. Liq. Cryst., 2003, 30(3): 273～283

[6] D. M. Walba, E. Krblova, R. Shao et al.. A bow-phase mesogen showing strong, robust analog electro-optics[J]. J. Mater. Chem., 2001, 11(1): 2743～2747

[7] H. N. Shreenivasa Murthy, B. K. Sadashiva. Banana-shaped mesogens: a new homologous series of compounds exhibiting the B7 mesophase[J]. Liq. Cryst., 2003, 30(9): 1051～1055

[8] Tong Zhi, Wei Huai, Wang Muguang et al.. Effect of change of ambient refractive index on characteristics of long-period fiber gratings[J]. Acta Optica Sinica, 2002, 22(9): 1088～1091

[9] Wei Huai, Tong Zhi, Wang Muguang et al.. Long-period fiber grating with metal coating[J]. Acta Optica Sinica, 2003, 23(8): 931～936

[10] Wang Zhile, Zhang Wei, Long Funian. Image quality evaluation for diffraction-limited optical synthetic aperture system[J]. Acta Optica Sinica, 2005, 25(1): 35～39