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Optics Letters

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  • Vol. 23, Iss. 12 — Jun. 15, 1998
  • pp: 924–926

Optically induced photovoltaic self-defocusing-to-self-focusing transition

Charalambos Anastassiou, Ming-feng Shih, Matthew Mitchell, Zhigang Chen, and Mordechai Segev  »View Author Affiliations


Optics Letters, Vol. 23, Issue 12, pp. 924-926 (1998)
http://dx.doi.org/10.1364/OL.23.000924


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Abstract

We show theoretically and experimentally that the photovoltaic nonlinearity that gives rise to spatial solitons can be switched from self-defocusing to self-focusing (or vice versa) by use of background illumination. This raises the possibility of bright photovoltaic solitons in LiNbO3 .

© 1998 Optical Society of America

OCIS Codes
(040.5350) Detectors : Photovoltaic
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(220.2560) Optical design and fabrication : Propagating methods

Citation
Charalambos Anastassiou, Ming-feng Shih, Matthew Mitchell, Zhigang Chen, and Mordechai Segev, "Optically induced photovoltaic self-defocusing-to-self-focusing transition," Opt. Lett. 23, 924-926 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-12-924


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References

  1. M. Segev, B. Crosignani, A. Yariv, and B. Fischer, Phys. Rev. Lett. 68, 923 (1992) ; G. Duree, J. Shultz, G. Salamo, M. Segev, A. Yariv, B. Crosignani, P. DiPorto, E. Sharp, and R. R. Neurgaonkar, Phys. Rev. Lett. 71, 553 (1993).
  2. M. Segev, G. C. Valley, B. Crosignani, P. DiPorto, and A. Yariv, Phys. Rev. Lett. 73, 3211 (1994); D. N. Christodoulides M. I. Carvalho, J. Opt. Soc. Am. B 12, 1628 (1995) ; M. Segev, M. Shih, and G. C. Valley, J. Opt. Soc. Am. B JOBPDE 13, 706 (1996).
  3. M. D. Iturbe-Castillo, P. A. Marquez-Aguilar, J. J. Sánchez-Mondragón, S. Stepanov, and V. Vysloukh, Appl. Phys. Lett. 64, 408 (1994).
  4. M. Shih, M. Segev, G. C. Valley, G. Salamo, B. Crosignani, and P. DiPorto, Electron. Lett. 31, 826 (1995).
  5. G. C. Valley, M. Segev, B. Crosignani, A. Yariv, M. M. Fejer, and M. Bashaw, Phys. Rev. A 50, R4457 (1994).
  6. M. Taya, M. Bashaw, M. M. Fejer, M. Segev, and G. C. Valley, Phys. Rev. A 52, 3095 (1995); Opt. Lett. 21, 943 (1996).
  7. M. Segev, G. C. Valley, M. Bashaw, M. Taya, and M. Fejer, J. Opt. Soc. Am. B 14, 1772 (1997).
  8. S. Bian, J. Frejlich, and K. Ringhofer, Phys. Rev. Lett. 78, 4035 (1997).
  9. Z. Chen, M. Segev, D. Wilson, R. Muller, and P. Maker, Phys. Rev. Lett. 78, 2948 (1997).
  10. The term “focused” is used to distinguish the narrow beam focused to the input face of the crystal from the uniform-background beam. It should not be confused with the terms “self-focused” and “self-defocused,” which describe the output beam at steady state.
  11. We measure interferometrically k333=1.14k311, but cases in which k311>k333 have been reported in, e.g., H. Festl, P. Hertel, E. Kratzig, R. Baltz, Phys. Status Solidi B 113, 157 (1982) ; B. I. Sturman V. M. Fridkin, The Photovoltaic and Photorefractive Effects in Non-Centrosymmetric Materials (Gordon & Breach, Philadelphia, Pa., 1992).

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