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Upon excitation of high intensity linearly polarized femtosecond laser, a blue-shifted two-photon induced photoproduct named F540 state with permanent photo-induced anisotropy is observed in bacteriorhodopsin (BR) films. Based on the F-state, permanent optical data storage can be realized with spatial field modulation of femtosecond laser. By using a phase-only spatial light modulator to modulate the spatial phase distribution of the incident femtosecond laser beam, we generate spot-patterns in the focal plane of the microscopic objective lens, and the patterns are recorded in the BR film. At the same time, by varying the polarization direction of the excitation laser beam, polarization-multiplexed optical data storage in the BR film is demonstrated, which is applicable to high-density optical data storage and optical information encryption.
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[18] Zhang J, Gecevičius M, Beresna M, Kazansky P G 2014 Phys. Rev. Lett. 112 033901
[19] Zijlstra P, Chon J W M, Gu M 2009 Nature 459 410
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[23] Xu C, Zhang C, Dai L, Leng X S, Xu L, Xu Y H 2013 Chin. Phys. B 22 054203
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[1] Hampp N 2000 Chem. Rev. 100 1755
[2] Clays K, van Elshocht S, Persoons A 2000 Opt. Lett. 25 1391
[3] Yao B, Zheng Y, Wang Y, Lei M, Chen G, Hampp N 2003 Opt. Commun. 218 125
[4] Fabian L, Heiner Z, Mero M, Kiss M, Wolff E K, Ormos P, Osvay K, Der A 2011 Opt. Express 19 18861
[5] Koek W D, Bhattacharya N, Braat J J M, Chan V S S, Westerweel J 2004 Opt. Lett. 29 101
[6] Kothapalli S R, Wu P, Yelleswarapu C S, Rao D V G L N 2004 Appl. Phys. Lett. 85 5836
[7] Fischer T, Neebe M, Juchem T, Hampp N 2003 IEEE Trans. Nanobiosci. 2 1
[8] Liu S Y, Ebrey T G 1987 Photochem. Photobiol. 46 263
[9] Fischer T, Hampp N 2005 Biophys. J. 89 1175
[10] Yao B, Lei M, Ren L, Menke N, Wang Y, Fischer T, Hampp N 2005 Opt. Lett. 30 3060
[11] Yu X, Yao B, Lei M, Gao P, Ma B 2013 J. Mod. Opt. 60 309
[12] Yu X, Yao B, Lei M, Hampp N, Liang Y, Dan D, Yang Y, Yan S, Gao P, Ye T 2014 Appl. Phys. B 115 365
[13] Hu Y, Zhang Z, Chen Y, Zhang Q, Huang W 2010 Opt. Lett. 35 46
[14] Milton G W, Eyre D J, Mantese J V 1997 Phys. Rev. Lett. 79 3062
[15] Gerchberg R W, Saxton W O 1972 Optik 35 237
[16] Zhou Q Q, Xu S W, Lu J F, Zhou Q, Ji X M, Yin J P 2013 Acta Phys. Sin. 62 153701 (in Chinese) [周巧巧, 徐淑武, 陆俊发, 周琦, 纪宪明, 印建平 2013 62 153701]
[17] Yu Y J, Wang T, Zheng H D 2009 Acta Phys. Sin. 58 3154 (in Chinese) [于瀛洁, 王涛, 郑华东 2009 58 3154]
[18] Zhang J, Gecevičius M, Beresna M, Kazansky P G 2014 Phys. Rev. Lett. 112 033901
[19] Zijlstra P, Chon J W M, Gu M 2009 Nature 459 410
[20] Kawata S, Sun H B, Tanaka T, Takada K 2001 Nature 412 697
[21] Wang W T, Hu B, Wang M W 2013 Acta Phys. Sin. 62 060601 (in Chinese) [王文亭, 胡冰, 王明伟 2013 62 060601]
[22] Li X C, Qu D X, Zhao X J, Meng X J, Zhang L L 2013 Chin. Phys. B 22 024203
[23] Xu C, Zhang C, Dai L, Leng X S, Xu L, Xu Y H 2013 Chin. Phys. B 22 054203
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