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A giant electro-optic effect using polarizable dark states

By A.K. Mohapatra, M.G. Bason, B. Butscher, K.J. Weatherill and C.S. Adams


The electro-optic effect, where the refractive index of a medium is modified by an electric field, is of central importance in nonlinear optics, laser technology, quantum optics and optical communications. In general, electro-optic coefficients are very weak and a medium with a giant electro-optic coefficient could have profound implications for precision electrometry and nonlinear optics at the single-photon level. Here we propose and demonstrate a giant d.c. electro-optic effect on the basis of polarizable (Rydberg) dark states. When a medium is prepared in a dark state consisting of a superposition of ground and Rydberg energy levels, it becomes transparent and acquires a refractive index that is dependent on the energy of the highly polarizable Rydberg state. We demonstrate phase modulation of the light field in the Rydberg-dark-state medium and measure an electro-optic coefficient that is more than six orders of magnitude larger than in usual Kerr media

Publisher: Nature Publishing Group
Year: 2008
DOI identifier: 10.1038/nphys1091
OAI identifier: oai:dro.dur.ac.uk.OAI2:7399

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  1. [1] J. Kerr, Philos. Mag. 50, 337 (1875).
  2. [10] L. V. Hau, S. E. Harris, Z. Dutton, and C. H. Behroozi, Nature 397, 594 (1999).
  3. [11] H. Kang, and Y. Zhu, Phys. Rev. Lett. 91, 093601 (2003).
  4. [12] I. L. Chuang, and Y. Yamamoto, Phys. Rev. A 52, 3489 (1995).
  5. [13] J. H. Shapiro, Phys. Rev. A 73, 062305 (2006).
  6. [14] I. Friedler, D. Petrosyan, M. Fleischhauer, and G. Kurizki, Phys. Rev. A 72, 043803 (2005).
  7. [15] T. F. Gallagher, Rydberg Atoms Ch. 2 (Cambridge University Press, Cambridge, 1994).
  8. [16] M. D. Lukin et al., Phys. Rev. Lett. 87, 037901 (2001).
  9. [17] D. Jaksch et al., Phys. Rev. Lett. 85, 2208 (2000).
  10. [18] D. Tong et al., Phys. Rev. Lett. 93, 063001 (2004).
  11. [19] K. Singer et al., Phys. Rev. Lett. 93, 163001 (2004).
  12. [2] A. Yariv, Quantum Electronics Ch. 14 (3rd edition, Wiley, New York, 1988).
  13. [3] R. W. Boyd Non-linear optics Ch. 11 (2nd edition, Academic Press, New York, 2003).
  14. [4] D. E. Spence, P. N. Kean, and W. Sibbett, Opt. Lett. 16, 42 (1991).
  15. [5] T. Brabec, and F. Krausz, Rev. Mod. Phys. 72, 545 (2000).
  16. [6] K.{J. Boller, A. Imamoglu, and S. E. Harris, Phys. Rev. Lett. 66, 2593 (1991) [7] A. Kasapi, M. Jain, G. Y. Yin, and S. E. Harris, Phys.
  17. [9] H. Schmidt, and A. Imamoglu, Opt. Lett. 21, 1936 (1996).
  18. Kerr coecient at
  19. Mod. Phys. 77, 633 (2005).
  20. Rev. Lett. 74, 2447 (1995). [8] M. Fleischhauer, A. Imamoglu, and J. P. Marangos, Rev.

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