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Refractive index changes induced by sheet beams with various intensity distributions in LiNbO3:Fe crystal

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Abstract

According to the Kukhtarev equations and a simplified model based on the photovoltaic charge carriers transport mechanism, the distributions of the index changes (DICs) in LiNbO3:Fe crystals induced by sheet beams with various intensity profiles are theoretically analyzed. The numerically simulated results coincide with the analytic expressions deduced from the simplified model. The DICs in a LiNbO3:Fe crystal induced by sheet beams with rectangular, Gaussian and square law profiles are measured by using the interferometric method. By employing the analytic expressions, the experimental data points are well fitted. By utilizing the angular spectrum theory and the ray equation, the uniformities of the intensity profiles of the writing beams along the propagation directions and the influences of the self-defocusing effect of the crystal are numerically simulated, respectively. The results show that the experimental results are reliable. The numerically simulated method and the analytic expressions can be both employed to predict the DICs induced by sheet beams with various light intensity profiles. Furthermore, utilizing writing beams with proper intensity profiles, any desired index distributions could be obtained.

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References

  1. Ashkin, A., Boyd, G. D., Dziedzic, J. M. et al., Optically-induced refractive index inhomogeneities in LiNbO3 and LiTaO3, Appl. Phys. Lett., 1966, 9(1): 72–74.

    Article  ADS  Google Scholar 

  2. Liu, D. A., Liu, L., Liu Y. W. et al., Self-enhancement effect during nonvolatile holographic storage in photochromic LiNbO3:Fe:Mn, Science in China, Ser. A, 2001, 44(6): 783–789.

    Google Scholar 

  3. Wu, J. L., Xie, P., Dai, J. H. et al., Phase conjugator with two coherent beams in a BaTiO3:Ce crystal, Science in China, Ser. A, 2000, 43(7): 743–752.

    Article  Google Scholar 

  4. Stegeman, G. I., Segev, M., Optical spatial solitons and their interactions: universality and diversity, Science, 1999, 286(5444):1518–1523.

    Article  Google Scholar 

  5. Itoh, K., Matoba, O., Ichioka, Y., Fabrication experiment of photorefractive three-dimensional waveguides in lithium niobate, Opt. Lett., 1994, 19(9): 652–654.

    Article  ADS  Google Scholar 

  6. Zhang, P., Zhao, J. L., Yang, D. X. et al., Optically, induced photorefractive waveguides in KNSBN:Ce crystal. Opt. Mat., 2003, 23(1–2): 299–303.

    Article  Google Scholar 

  7. Zhang, P., Zhao, J. L., Yang, D. X. et al., Optical masks prepared by using liquid crystal light valve for light-induced photorefractive waveguides, Appl. Opt., 2003, 42(20): 4208–4211.

    Article  ADS  Google Scholar 

  8. Zhang, P., Zhao, J. L., Yang, D. X. et al., Analyses of guiding properties of light-induced planar waveguides in LiNbO3: Fe crystals, Acta Phys. Sin., 2004, 53(10): 3369–3374.

    Google Scholar 

  9. Zhang, P., Yang, D. X., Zhao, J. L. et al., Light-induced array of three-dimensional waveguides in lithium niobate by employing two-beam interference field, Chin. Phys. Lett., 2004, 21(8): 1558–1561.

    Article  ADS  Google Scholar 

  10. Johnston, W. D., Optical index damage in LiNbO3 and other pyroelectric insulators, J. Appl. Phys., 1970, 41(8): 3279–3285.

    Article  MathSciNet  ADS  Google Scholar 

  11. Xie, P., Dai, J. H., Wu, J. L., et al., Spatial modulation of Gaussian beam in BaTiO3: Ce crystal with external electric field, Science in China, Ser. A, 1996, 39(11): 1178–1182.

    Google Scholar 

  12. Townsend, R. L., LaMacchia, J. T., Optically induced refractive index changes in BaTiO3, J Appl. Phys., 1970, 41(13): 5188–5192.

    Article  ADS  Google Scholar 

  13. Chen, F. S., Optically induced change of refractive indices in LiNbO3 and LiTaO3, J. Appl. Phys., 1969, 40 (8): 3389–3396.

    Article  ADS  Google Scholar 

  14. Althoff, O., Krätzig, E., Strong light-induced refractive index changes in LiNbO3, Proc. SPIE, 1990, 1273: 12–19.

    Article  ADS  Google Scholar 

  15. Zozulya, A. A., Anderson, D. Z., Propagation of an optical beam in a photorefractive medium in the presence of a photogalvanic nonlinearity or an externally applied electric field, Phys. Rev. A, 1995, 51(2): 1520–1531.

    Article  ADS  Google Scholar 

  16. Peithmann, K., Wiebrock, A., Buse, K., et al. Low-spatial-frequency refractive-index changes in iron-doped lithium niobate crystals upon illumination with a focused, continuous-wave laser beam, J. Opt. Soc. B, 2000, 17(4): 586–592.

    Article  ADS  Google Scholar 

  17. Yang, D. X., Zhao, J. L., Zhang, P. et al., The index changes of waveguides fabricated by light irradiation in LiNbO3:Fe crystals, Acta Phys. Sin., 2003, 52(5): 1179–1183.

    Google Scholar 

  18. Kukhtarev, N. V., Markov, V. B., Odulov, S. G. et al., Holographic storage in electrooptic crystals, I. steady state Ferroelectrics, 1979, 22(3): 949–960.

    Google Scholar 

  19. Günter, P., Huignard, J. P., Photorefractive Materials and Their Applications I, Berlin, Springer-Verlag, 1988.

    Google Scholar 

  20. Zhao, J. L., Advanced Optics (in Chinese), Beijing: National Defence Industry Press, 2002.

    Google Scholar 

  21. Born, M., Wolf, E., Principles of Optics I (in Chinese), Beijing: Science Press, 1978.

    Google Scholar 

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Authors and Affiliations

  1. Institute of Optical Information Science, and Technology, School of Science, Northwestern Polytechnical University, 710072, Xi’an, China

    Peng Zhang, Jianlin Zhao, Honglai Xu, Dexing Yang & Meirong Wang

  2. School of Science, Xi’an Jiaotong University, 710049, Xi’an, China

    Yidong Sun

Authors
  1. Peng Zhang
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  2. Jianlin Zhao
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  3. Honglai Xu
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  4. Yidong Sun
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  5. Dexing Yang
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  6. Meirong Wang
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Correspondence to Peng Zhang.

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Zhang, P., Zhao, J., Xu, H. et al. Refractive index changes induced by sheet beams with various intensity distributions in LiNbO3:Fe crystal. SCI CHINA SER G 48, 399–412 (2005). https://doi.org/10.1360/142004-57

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  • DOI: https://doi.org/10.1360/142004-57

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