Abstract

We have observed a dispersionlike absorption (or gain) spectrum at the D1 transition in a Rb vapor cell filled with a buffer gas, due to Zeeman coherence of the ground states in a double Λ configuration. Meanwhile, we have also observed superluminal pulse propagation. It is experimentally demonstrated that the front speed of a light pulse still equals the light speed c in vacuum, although the group velocity of the light pulse is (2.2±0.6)×104ms.

© 2006 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. R. Y. Chiao, Phys. Rev. A 48, R34 (1993).
    [CrossRef] [PubMed]
  2. R. W. Boyd and D. J. Gauthier, in Progress in Optics, E.Wolf, ed. (Elsevier, 2002), Vol. 43, p. 497.
    [CrossRef]
  3. R. Y. Chiao and A. M. Steinberg, in Progress in Optics, E.Wolf, ed. (Elsevier, 1997), Vol. 37, p. 347.
    [CrossRef]
  4. L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
    [CrossRef] [PubMed]
  5. L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
    [CrossRef]
  6. D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
    [CrossRef] [PubMed]
  7. M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
    [CrossRef] [PubMed]
  8. M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
    [CrossRef] [PubMed]
  9. E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
    [CrossRef]
  10. J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
    [CrossRef]
  11. R. H. Dicke, Phys. Rev. 89, 472 (1953).
    [CrossRef]
  12. J.Vanier and C.Audoin, eds., The Quantum Physics of Atomic Frequency Standards (Taylor & Francis, 1989), Vol. 1.
    [CrossRef]
  13. J. D. Jackson, Classical Electrodynamics, 3rd ed. (Wiley, 1998), p. 334.

2005

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
[CrossRef] [PubMed]

2004

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

2003

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
[CrossRef] [PubMed]

2001

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef] [PubMed]

2000

L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
[CrossRef] [PubMed]

1999

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

1998

J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
[CrossRef]

1993

R. Y. Chiao, Phys. Rev. A 48, R34 (1993).
[CrossRef] [PubMed]

1953

R. H. Dicke, Phys. Rev. 89, 472 (1953).
[CrossRef]

Behroozi, C.

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

Boyd, R. W.

R. W. Boyd and D. J. Gauthier, in Progress in Optics, E.Wolf, ed. (Elsevier, 2002), Vol. 43, p. 497.
[CrossRef]

Chiao, R. Y.

R. Y. Chiao, Phys. Rev. A 48, R34 (1993).
[CrossRef] [PubMed]

R. Y. Chiao and A. M. Steinberg, in Progress in Optics, E.Wolf, ed. (Elsevier, 1997), Vol. 37, p. 347.
[CrossRef]

Dicke, R. H.

R. H. Dicke, Phys. Rev. 89, 472 (1953).
[CrossRef]

Dogarlu, A.

L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
[CrossRef] [PubMed]

Dutton, Z.

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

Fleischhauer, A.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef] [PubMed]

Gauthier, D. J.

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
[CrossRef] [PubMed]

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
[CrossRef] [PubMed]

R. W. Boyd and D. J. Gauthier, in Progress in Optics, E.Wolf, ed. (Elsevier, 2002), Vol. 43, p. 497.
[CrossRef]

Godone, A.

J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
[CrossRef]

Harris, S. E.

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

Hau, L. V.

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

Jackson, J. D.

J. D. Jackson, Classical Electrodynamics, 3rd ed. (Wiley, 1998), p. 334.

Kuzmich, A.

L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
[CrossRef] [PubMed]

Levi, F.

J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
[CrossRef]

Lukin, M. D.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef] [PubMed]

Mair, A.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef] [PubMed]

Mikhailov, E. E.

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

Neifeld, M. A.

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
[CrossRef] [PubMed]

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
[CrossRef] [PubMed]

Novikova, I.

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

Phillips, D. F.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef] [PubMed]

Rostovtsov, Y. V.

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

Steinberg, A. M.

R. Y. Chiao and A. M. Steinberg, in Progress in Optics, E.Wolf, ed. (Elsevier, 1997), Vol. 37, p. 347.
[CrossRef]

Stenner, M. D.

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
[CrossRef] [PubMed]

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
[CrossRef] [PubMed]

Vanier, J.

J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
[CrossRef]

Walsworth, R. L.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef] [PubMed]

Wang, L. J.

L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
[CrossRef] [PubMed]

Welch, G. R.

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

Nature

L. J. Wang, A. Kuzmich, and A. Dogarlu, Nature 406, 277 (2000).
[CrossRef] [PubMed]

L. V. Hau, S. E. Harris, Z. Dutton, and C. Behroozi, Nature 397, 594 (1999).
[CrossRef]

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Nature 425, 695 (2003).
[CrossRef] [PubMed]

Phys. Rev.

R. H. Dicke, Phys. Rev. 89, 472 (1953).
[CrossRef]

Phys. Rev. A

E. E. Mikhailov, I. Novikova, Y. V. Rostovtsov, and G. R. Welch, Phys. Rev. A 70, 033806 (2004).
[CrossRef]

J. Vanier, A. Godone, and F. Levi, Phys. Rev. A 58, 2345 (1998).
[CrossRef]

R. Y. Chiao, Phys. Rev. A 48, R34 (1993).
[CrossRef] [PubMed]

Phys. Rev. Lett.

D. F. Phillips, A. Fleischhauer, A. Mair, R. L. Walsworth, and M. D. Lukin, Phys. Rev. Lett. 86, 783 (2001).
[CrossRef] [PubMed]

M. D. Stenner, D. J. Gauthier, and M. A. Neifeld, Phys. Rev. Lett. 94, 053902 (2005).
[CrossRef] [PubMed]

Other

R. W. Boyd and D. J. Gauthier, in Progress in Optics, E.Wolf, ed. (Elsevier, 2002), Vol. 43, p. 497.
[CrossRef]

R. Y. Chiao and A. M. Steinberg, in Progress in Optics, E.Wolf, ed. (Elsevier, 1997), Vol. 37, p. 347.
[CrossRef]

J.Vanier and C.Audoin, eds., The Quantum Physics of Atomic Frequency Standards (Taylor & Francis, 1989), Vol. 1.
[CrossRef]

J. D. Jackson, Classical Electrodynamics, 3rd ed. (Wiley, 1998), p. 334.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (5)

Fig. 1
Fig. 1

Hanle configuration of Rb 87 atomic states, where Δ is one-photon detuning from the excited state ( 5 P 1 2 , F = 1 ) at the midpoint between the two excited states, Δ = 406 MHz . δ is sublevel splitting via Zeeman effects.

Fig. 2
Fig. 2

Schematic of the experimental setup.

Fig. 3
Fig. 3

Observation of the transmission spectra of the probe beam when the laser frequency is tuned to the midpoint between the two exited states.

Fig. 4
Fig. 4

Calculated refractive index Re [ n ] of the medium and group velocity v g of the light pulse. Note that the imaginary part, Im [ n ] , of the refractive index is calculated from the data in Fig. 3.

Fig. 5
Fig. 5

Experimental observation of (a) a fast light pulse, I c = 9.55 mW cm 2 and I p = 0.95 mW cm 2 , and (b) a slow light pulse, I c = 12.74 mW cm 2 and I p = 1.27 mW cm 2 .

Metrics