Abstract

Simultaneous laser action of a binary-dye mixture in random media was observed. The relative intensity of lasing emissions from donor and acceptor dyes is found to be strongly dependent on the number density of the scatterers in addition to the pumping power and the dye concentrations. The laser action in a binary-dye mixture can potentially be used to determine the scattering characteristics of random media.

© 1995 Optical Society of America

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References

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  1. N. M. Lawandy, R. M. Balachandran, A. M. L. Gomes, E. Sauvain, Nature (London) 368, 436 (1994); N. M. Lawandy, R. M. Balachandran, Nature (London) 373, 204 (1995); R. M. Balachandran, N. M. Lawandy, “Spatio-temporal studies in strongly scattering gain media,”presented at the Annual Meeting of the Optical Society of America, Dallas, Tex., October 2–7, 1994, paper TuN1.
    [CrossRef] [PubMed]
  2. W. L. Sha, C. H. Liu, R. R. Alfano, Opt. Lett. 19, 1922 (1994).
    [CrossRef] [PubMed]
  3. A. Z. Genack, J. M. Drake, Nature (London) 368, 400 (1994).
    [CrossRef]
  4. R. V. Ambartsumyan, P. G. Kryukov, V. S. Letokhov, Sov. Phys. JETP 24, 1129 (1967).
  5. W. Zhang, N. Cue, K. M. Yoo, Opt. Lett. 20, 961 (1995).
    [CrossRef] [PubMed]
  6. M. A. Ali, M. El-Massry, S. A. Ahmed, Appl. Opt. 29, 4494 (1990).
    [CrossRef] [PubMed]
  7. C. E. Moeller, C. M. Verber, A. H. Adelman, Appl. Phys. Lett. 18, 278 (1971).
    [CrossRef]
  8. N. V. Unnikrishnan, H. S. Bhatth, R. D. Singh, Opt. Acta 31, 983 (1984).
    [CrossRef]

1995 (1)

1994 (3)

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

A. Z. Genack, J. M. Drake, Nature (London) 368, 400 (1994).
[CrossRef]

N. M. Lawandy, R. M. Balachandran, A. M. L. Gomes, E. Sauvain, Nature (London) 368, 436 (1994); N. M. Lawandy, R. M. Balachandran, Nature (London) 373, 204 (1995); R. M. Balachandran, N. M. Lawandy, “Spatio-temporal studies in strongly scattering gain media,”presented at the Annual Meeting of the Optical Society of America, Dallas, Tex., October 2–7, 1994, paper TuN1.
[CrossRef] [PubMed]

1990 (1)

1984 (1)

N. V. Unnikrishnan, H. S. Bhatth, R. D. Singh, Opt. Acta 31, 983 (1984).
[CrossRef]

1971 (1)

C. E. Moeller, C. M. Verber, A. H. Adelman, Appl. Phys. Lett. 18, 278 (1971).
[CrossRef]

1967 (1)

R. V. Ambartsumyan, P. G. Kryukov, V. S. Letokhov, Sov. Phys. JETP 24, 1129 (1967).

Adelman, A. H.

C. E. Moeller, C. M. Verber, A. H. Adelman, Appl. Phys. Lett. 18, 278 (1971).
[CrossRef]

Ahmed, S. A.

Alfano, R. R.

Ali, M. A.

Ambartsumyan, R. V.

R. V. Ambartsumyan, P. G. Kryukov, V. S. Letokhov, Sov. Phys. JETP 24, 1129 (1967).

Balachandran, R. M.

N. M. Lawandy, R. M. Balachandran, A. M. L. Gomes, E. Sauvain, Nature (London) 368, 436 (1994); N. M. Lawandy, R. M. Balachandran, Nature (London) 373, 204 (1995); R. M. Balachandran, N. M. Lawandy, “Spatio-temporal studies in strongly scattering gain media,”presented at the Annual Meeting of the Optical Society of America, Dallas, Tex., October 2–7, 1994, paper TuN1.
[CrossRef] [PubMed]

Bhatth, H. S.

N. V. Unnikrishnan, H. S. Bhatth, R. D. Singh, Opt. Acta 31, 983 (1984).
[CrossRef]

Cue, N.

Drake, J. M.

A. Z. Genack, J. M. Drake, Nature (London) 368, 400 (1994).
[CrossRef]

El-Massry, M.

Genack, A. Z.

A. Z. Genack, J. M. Drake, Nature (London) 368, 400 (1994).
[CrossRef]

Gomes, A. M. L.

N. M. Lawandy, R. M. Balachandran, A. M. L. Gomes, E. Sauvain, Nature (London) 368, 436 (1994); N. M. Lawandy, R. M. Balachandran, Nature (London) 373, 204 (1995); R. M. Balachandran, N. M. Lawandy, “Spatio-temporal studies in strongly scattering gain media,”presented at the Annual Meeting of the Optical Society of America, Dallas, Tex., October 2–7, 1994, paper TuN1.
[CrossRef] [PubMed]

Kryukov, P. G.

R. V. Ambartsumyan, P. G. Kryukov, V. S. Letokhov, Sov. Phys. JETP 24, 1129 (1967).

Lawandy, N. M.

N. M. Lawandy, R. M. Balachandran, A. M. L. Gomes, E. Sauvain, Nature (London) 368, 436 (1994); N. M. Lawandy, R. M. Balachandran, Nature (London) 373, 204 (1995); R. M. Balachandran, N. M. Lawandy, “Spatio-temporal studies in strongly scattering gain media,”presented at the Annual Meeting of the Optical Society of America, Dallas, Tex., October 2–7, 1994, paper TuN1.
[CrossRef] [PubMed]

Letokhov, V. S.

R. V. Ambartsumyan, P. G. Kryukov, V. S. Letokhov, Sov. Phys. JETP 24, 1129 (1967).

Liu, C. H.

Moeller, C. E.

C. E. Moeller, C. M. Verber, A. H. Adelman, Appl. Phys. Lett. 18, 278 (1971).
[CrossRef]

Sauvain, E.

N. M. Lawandy, R. M. Balachandran, A. M. L. Gomes, E. Sauvain, Nature (London) 368, 436 (1994); N. M. Lawandy, R. M. Balachandran, Nature (London) 373, 204 (1995); R. M. Balachandran, N. M. Lawandy, “Spatio-temporal studies in strongly scattering gain media,”presented at the Annual Meeting of the Optical Society of America, Dallas, Tex., October 2–7, 1994, paper TuN1.
[CrossRef] [PubMed]

Sha, W. L.

Singh, R. D.

N. V. Unnikrishnan, H. S. Bhatth, R. D. Singh, Opt. Acta 31, 983 (1984).
[CrossRef]

Unnikrishnan, N. V.

N. V. Unnikrishnan, H. S. Bhatth, R. D. Singh, Opt. Acta 31, 983 (1984).
[CrossRef]

Verber, C. M.

C. E. Moeller, C. M. Verber, A. H. Adelman, Appl. Phys. Lett. 18, 278 (1971).
[CrossRef]

Yoo, K. M.

Zhang, W.

Appl. Opt. (1)

Appl. Phys. Lett. (1)

C. E. Moeller, C. M. Verber, A. H. Adelman, Appl. Phys. Lett. 18, 278 (1971).
[CrossRef]

Nature (2)

N. M. Lawandy, R. M. Balachandran, A. M. L. Gomes, E. Sauvain, Nature (London) 368, 436 (1994); N. M. Lawandy, R. M. Balachandran, Nature (London) 373, 204 (1995); R. M. Balachandran, N. M. Lawandy, “Spatio-temporal studies in strongly scattering gain media,”presented at the Annual Meeting of the Optical Society of America, Dallas, Tex., October 2–7, 1994, paper TuN1.
[CrossRef] [PubMed]

A. Z. Genack, J. M. Drake, Nature (London) 368, 400 (1994).
[CrossRef]

Opt. Acta (1)

N. V. Unnikrishnan, H. S. Bhatth, R. D. Singh, Opt. Acta 31, 983 (1984).
[CrossRef]

Opt. Lett. (2)

Sov. Phys. JETP (1)

R. V. Ambartsumyan, P. G. Kryukov, V. S. Letokhov, Sov. Phys. JETP 24, 1129 (1967).

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Figures (2)

Fig. 1
Fig. 1

Emission spectra from binary-dye mixtures in a methanol solution with suspension 1 × 1010 cm−3 of TiO2 scatterer. The concentration of Nile Blue is 1 × 10−3 M. The concentration of Rhodamine B is 0 for curve (a) and 2.5 × 10−3 M for curves (b)–(d). The excitation intensity and the relative emission intensity are indicated above each curve.

Fig. 2
Fig. 2

Emission spectra from Rhodamine B (2.5 × 10−3 M) and Nile Blue (0.3 × 10−3 M) dye mixtures in a methanol solution pumped by a 532-nm laser at 7 mJ. The concentrations of TiO2 are indicated.

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