Abstract

The spectral characteristics of liquid amplifying media have been used to design and experimentally realize an optical device that prevents the propagation of a band of wavelengths in one direction and permits it in the opposite direction, thus acting as an optical diode. The addition of random scattering centers is shown to narrow the width of the forbidden band. A model is proposed to explain the observations and is verified by Monte Carlo simulations.

© 2001 Optical Society of America

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References

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  1. V. S. Letokhov, Sov. Phys. JETP 26, 835 (1968).
  2. N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, Nature 368, 436 (1994).
    [CrossRef]
  3. W. L. Sha, C. H. Liu, and R. R. Alfano, Opt. Lett. 19, 1922 (1994).
    [CrossRef] [PubMed]
  4. W. L. Sha, C. H. Liu, F. Liu, and R. R. Alfano, Opt. Lett. 21, 1277 (1996).
    [CrossRef] [PubMed]
  5. R. M. Balachandran, D. Pacheco, and N. M. Lawandy, Appl. Opt. 35, 640 (1996).
    [CrossRef] [PubMed]
  6. D. S. Wiersma and A. Lagendijk, Phys. Rev. E 54, 4256 (1996).
    [CrossRef]
  7. B. R. Prasad, H. Ramachandran, A. K. Sood, C. K. Subramanian, and N. Kumar, Appl. Opt. 36, 7718 (1997).
    [CrossRef]
  8. H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, Phys. Rev. Lett. 82, 2278 (1999).
    [CrossRef]
  9. S. Mujumdar and H. Ramachandran, Opt. Commun. 176, 31 (2000).
    [CrossRef]

2000 (1)

S. Mujumdar and H. Ramachandran, Opt. Commun. 176, 31 (2000).
[CrossRef]

1999 (1)

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, Phys. Rev. Lett. 82, 2278 (1999).
[CrossRef]

1997 (1)

1996 (3)

1994 (2)

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, Nature 368, 436 (1994).
[CrossRef]

W. L. Sha, C. H. Liu, and R. R. Alfano, Opt. Lett. 19, 1922 (1994).
[CrossRef] [PubMed]

1968 (1)

V. S. Letokhov, Sov. Phys. JETP 26, 835 (1968).

Alfano, R. R.

Balachandran, R. M.

R. M. Balachandran, D. Pacheco, and N. M. Lawandy, Appl. Opt. 35, 640 (1996).
[CrossRef] [PubMed]

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, Nature 368, 436 (1994).
[CrossRef]

Cao, H.

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, Phys. Rev. Lett. 82, 2278 (1999).
[CrossRef]

Chang, R. P. H.

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, Phys. Rev. Lett. 82, 2278 (1999).
[CrossRef]

Gomes, A. S. L.

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, Nature 368, 436 (1994).
[CrossRef]

Ho, S. T.

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, Phys. Rev. Lett. 82, 2278 (1999).
[CrossRef]

Kumar, N.

Lagendijk, A.

D. S. Wiersma and A. Lagendijk, Phys. Rev. E 54, 4256 (1996).
[CrossRef]

Lawandy, N. M.

R. M. Balachandran, D. Pacheco, and N. M. Lawandy, Appl. Opt. 35, 640 (1996).
[CrossRef] [PubMed]

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, Nature 368, 436 (1994).
[CrossRef]

Letokhov, V. S.

V. S. Letokhov, Sov. Phys. JETP 26, 835 (1968).

Liu, C. H.

Liu, F.

Mujumdar, S.

S. Mujumdar and H. Ramachandran, Opt. Commun. 176, 31 (2000).
[CrossRef]

Pacheco, D.

Prasad, B. R.

Ramachandran, H.

Sauvain, E.

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, Nature 368, 436 (1994).
[CrossRef]

Seelig, E. W.

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, Phys. Rev. Lett. 82, 2278 (1999).
[CrossRef]

Sha, W. L.

Sood, A. K.

Subramanian, C. K.

Wang, Q. H.

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, Phys. Rev. Lett. 82, 2278 (1999).
[CrossRef]

Wiersma, D. S.

D. S. Wiersma and A. Lagendijk, Phys. Rev. E 54, 4256 (1996).
[CrossRef]

Zhao, Y. G.

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, Phys. Rev. Lett. 82, 2278 (1999).
[CrossRef]

Appl. Opt. (2)

Nature (1)

N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, and E. Sauvain, Nature 368, 436 (1994).
[CrossRef]

Opt. Commun. (1)

S. Mujumdar and H. Ramachandran, Opt. Commun. 176, 31 (2000).
[CrossRef]

Opt. Lett. (2)

Phys. Rev. E (1)

D. S. Wiersma and A. Lagendijk, Phys. Rev. E 54, 4256 (1996).
[CrossRef]

Phys. Rev. Lett. (1)

H. Cao, Y. G. Zhao, S. T. Ho, E. W. Seelig, Q. H. Wang, and R. P. H. Chang, Phys. Rev. Lett. 82, 2278 (1999).
[CrossRef]

Sov. Phys. JETP (1)

V. S. Letokhov, Sov. Phys. JETP 26, 835 (1968).

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Figures (5)

Fig. 1
Fig. 1

Schematic of the experimental setup.

Fig. 2
Fig. 2

Experimentally observed emission spectra at the two ends of the diode, with a homogeneous amplifying medium. End A is the low-concentration end.

Fig. 3
Fig. 3

Experimentally observed emission spectra from the diode, with scatterers in the amplifying medium.

Fig. 4
Fig. 4

Simulated spectra for a one-dimensional exponentially graded gain medium. End A is the low-concentration end.

Fig. 5
Fig. 5

Simulated spectra for a one-dimensional exponentially graded gain medium with random scatterers.

Equations (1)

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αλ=exp-LN0xσabsλ-N1xσemλ,

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