本文比较了连续矾酸钇倍频激光(输出波长532 nm),脉冲Nd:YAG倍频激光(输出波长532 nm、脉宽8 ns、重复频率10 Hz)作用下,偶氮侧链液晶聚合物薄膜的光致双折射效应和光记录特性.根据实验结果和数值模拟情况[8],引入温度效应,提出分子团积和主链链段取向效应,给出了基于光致双折射效应长久光信息记录的解释.
参考文献
[1] | Gibbons W M, Shannon P J, Sun S T et al. Surface-mediated alignment of nematic liquid crystals with polarized laser light [J]. Nature, 1991, 351(6321): 49-50 |
[2] | Ikeda T, Tsutsumi O. Optical switching and image storage by means of azobenzene liquid-crystal films [J]. Science,1995, 268(5219): 1873-1875 |
[3] | Home N C R, Ramanujam P S, Hvilsted S. Photoinduced anisotropy measurements in liquid-crystalline azobenzene side-chain polyesters [J] Appl. Opt., 1996, 35(23): 4622-4627 |
[4] | Wang Chanshun, Chen Guojian, Chen Yongmei et al. Image storage based on photoinduced alignment in azobenzene liquid-crystalline films [J]. Chin. Phys. Lett., 1999, 16(8): 565-567 |
[5] | Zhang Jiangying, Liang Zhongcheng, Ming Hai et al. Two-photon bit data storage in azobenzene polymer liquid crystal using low-power CW laser, Fifth Internation Symposium on Optical Storage (ISOS 2000) [C] // SPIE,2001, 4085:167-170 |
[6] | Wang Guangbin,Hou Lisong,Gan Fuxi.Recent studies of azodyes as optical storage materials[J].Physics(物理),1998,27(12):726-729(in Chinese) |
[7] | Wang Pei,Ming Hai,Liang Zhongcheng etal.Photoinduced birefringence and optical storege in azobenzene side-chain polyner liquid crystral film[J].Chinese Journal of Quantum Electronics(量子电子学报),2002,19(4):358-362(in Chinese) |
[8] | Wang Xinghua, Shen Weilun, Zhang Qijin et al. Laer-induced temperature distribution in photo-alignment of azobenzene liquid crystalline side chain polymers [J]. Mol. Cryst. Liq. Cryst., 350:225-235 |
[9] | Liu Jie. Photoinduced orientation of azobenzene polymer liquid-crystals [D]. Dissertation of Master's Degree of USTC, 2001. |
[10] | Wu Y L, Demachi Y, Tsutsumi O et al. Photoinduced alignment of polymer liquid-crystals containing azobenzene moieties in the side-chain - 3 - effect of structure of photochromic moieties on alignment behavior [J]. Macromolecules, 1998, 31(14): 4457-4463 |
[11] | Wu Y L, Demachi Y, Tsutsumi O et al. Photoinduced alignment of polymer liquid-crystals containing azobenzene moieties in the side-chain - 2 - effect of spacer length of the azobenzene unit on alignment behavior [J].Macromolecules, 1998, 31(4): 1104-1108 |
[12] | Wu Y L, Demachi Y, Tsutsumi O et al. Photoinduced alignment of polymer liquid-crystals containing azobenzene moieties in the side-chain - 1 - effect of light-intensity on alignment behavior [J]. Macromplecules, 1998, 31(2):349-354 |
[13] | Rochon P, Batalla E, Natansohn A. Optically induced surface gratings on azoaromatic polymer films [J]. Appl.Phys. Lett., 1995, 66(2): 136-138 |
[14] | Kim D Y, Tripathy S K, Li Lian et al. Laser-induced holographic surface relief gratings on nonlinear optical polymer films [J]. Appl. Phys. Lett., 1995, 66(10): 1166-1168 |
[15] | Ramanujam P S, Holme N C R, Hvilsted S. Atomic force and optical near-field microscopic investigations of polarization holographic in a liquid crystalline azobenzene side-chain polyester. Appl. Phys. Lett., 1996, 68(10):1329-1331 |
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