Abstract

Intense isotropic laser emission from an optically pumped scattering gain medium has been used to induce isotropic lasing in an adjacent scattering gain medium at a longer wavelength. The energy-transfer mechanism between the media involved has been studied with a simple model based on radiation-transfer theory. The applications of this effect for wavelength-domain coding are also discussed.

© 1996 Optical Society of America

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  1. N. M. Lawandy, R. M. Balachandran, A. S. L. Gomes, E. SauvainNature (London) 368, 436 (1994).
    [CrossRef]
  2. N. M. Lawandy, R. M. BalachandranNature (London) 373, 203 (1995).
    [CrossRef]
  3. R. M. Balachandran, N. M. LawandyOpt. Lett. 20, 1271 (1995).
    [CrossRef] [PubMed]
  4. R. M. Balachandran, N. M. Lawandyin Quantum Electronics and Laser Science, Vol. 16 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper QPD15.
  5. R. M. Balachandran, N. M. Lawandypresented at the Optical Society of America Annual Meeting, Dallas, Tex., October 2–7, 1994, paper TUN1.
  6. R. M. Balachandran, N. M. Lawandyin Digest of Quantum Electronics and Laser Science Conference (Optical Society of America, Washington, D.C., 1994), paper QPD15.
  7. R. M. Balachandran, D. P. Pacheco, N. M. Lawandypresented at the Optical Society of America Annual Meeting, Dallas, Tex., October 2–7, 1994, paper MB6.
  8. N. M. Lawandy, N. Kondon, R. M. Balachandran, D. Pachecoin Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper CWJ5.
  9. N. M. LawandyPhoton. Spectra(July1994) pp. 119–124.
  10. H. C. Hottel, A. F. SarofimRadiative Transfer (McGraw-Hill, New York, 1967), Chap. 2, p. 42.

1995

N. M. Lawandy, R. M. BalachandranNature (London) 373, 203 (1995).
[CrossRef]

R. M. Balachandran, N. M. LawandyOpt. Lett. 20, 1271 (1995).
[CrossRef] [PubMed]

1994

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

N. M. LawandyPhoton. Spectra(July1994) pp. 119–124.

Balachandran, R. M.

N. M. Lawandy, R. M. BalachandranNature (London) 373, 203 (1995).
[CrossRef]

R. M. Balachandran, N. M. LawandyOpt. Lett. 20, 1271 (1995).
[CrossRef] [PubMed]

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

R. M. Balachandran, N. M. Lawandypresented at the Optical Society of America Annual Meeting, Dallas, Tex., October 2–7, 1994, paper TUN1.

R. M. Balachandran, D. P. Pacheco, N. M. Lawandypresented at the Optical Society of America Annual Meeting, Dallas, Tex., October 2–7, 1994, paper MB6.

R. M. Balachandran, N. M. Lawandyin Digest of Quantum Electronics and Laser Science Conference (Optical Society of America, Washington, D.C., 1994), paper QPD15.

R. M. Balachandran, N. M. Lawandyin Quantum Electronics and Laser Science, Vol. 16 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper QPD15.

N. M. Lawandy, N. Kondon, R. M. Balachandran, D. Pachecoin Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper CWJ5.

Gomes, A. S. L.

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

Hottel, H. C.

H. C. Hottel, A. F. SarofimRadiative Transfer (McGraw-Hill, New York, 1967), Chap. 2, p. 42.

Kondon, N.

N. M. Lawandy, N. Kondon, R. M. Balachandran, D. Pachecoin Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper CWJ5.

Lawandy, N. M.

R. M. Balachandran, N. M. LawandyOpt. Lett. 20, 1271 (1995).
[CrossRef] [PubMed]

N. M. Lawandy, R. M. BalachandranNature (London) 373, 203 (1995).
[CrossRef]

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

N. M. LawandyPhoton. Spectra(July1994) pp. 119–124.

R. M. Balachandran, N. M. Lawandypresented at the Optical Society of America Annual Meeting, Dallas, Tex., October 2–7, 1994, paper TUN1.

R. M. Balachandran, D. P. Pacheco, N. M. Lawandypresented at the Optical Society of America Annual Meeting, Dallas, Tex., October 2–7, 1994, paper MB6.

N. M. Lawandy, N. Kondon, R. M. Balachandran, D. Pachecoin Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper CWJ5.

R. M. Balachandran, N. M. Lawandyin Quantum Electronics and Laser Science, Vol. 16 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper QPD15.

R. M. Balachandran, N. M. Lawandyin Digest of Quantum Electronics and Laser Science Conference (Optical Society of America, Washington, D.C., 1994), paper QPD15.

Pacheco, D.

N. M. Lawandy, N. Kondon, R. M. Balachandran, D. Pachecoin Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper CWJ5.

Pacheco, D. P.

R. M. Balachandran, D. P. Pacheco, N. M. Lawandypresented at the Optical Society of America Annual Meeting, Dallas, Tex., October 2–7, 1994, paper MB6.

Sarofim, A. F.

H. C. Hottel, A. F. SarofimRadiative Transfer (McGraw-Hill, New York, 1967), Chap. 2, p. 42.

Sauvain, E.

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

Nature

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

N. M. Lawandy, R. M. BalachandranNature (London) 373, 203 (1995).
[CrossRef]

Opt. Lett.

Spectra

N. M. LawandyPhoton. Spectra(July1994) pp. 119–124.

Other

H. C. Hottel, A. F. SarofimRadiative Transfer (McGraw-Hill, New York, 1967), Chap. 2, p. 42.

R. M. Balachandran, N. M. Lawandyin Quantum Electronics and Laser Science, Vol. 16 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper QPD15.

R. M. Balachandran, N. M. Lawandypresented at the Optical Society of America Annual Meeting, Dallas, Tex., October 2–7, 1994, paper TUN1.

R. M. Balachandran, N. M. Lawandyin Digest of Quantum Electronics and Laser Science Conference (Optical Society of America, Washington, D.C., 1994), paper QPD15.

R. M. Balachandran, D. P. Pacheco, N. M. Lawandypresented at the Optical Society of America Annual Meeting, Dallas, Tex., October 2–7, 1994, paper MB6.

N. M. Lawandy, N. Kondon, R. M. Balachandran, D. Pachecoin Conference on Lasers and Electro-Optics, Vol. 15 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), paper CWJ5.

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Figures (4)

Fig. 1
Fig. 1

Experimental geometry used to study the energy transfer between the two polymeric scattering gain media. The polymer sheets PM567 and RH640 consist of 1011/cm3 TiO2 nanoscatterers (~250-nm diameter) in a 2 × 10−3 M solution of Pyromethene 567 and Rhodamine 640 perchlorate, respectively. The PM567 sheet is pumped by 532-nm radiation from a Q-switched Nd:YAG laser and emits isotropic 4-nm-wide radiation at 590 nm that is used to pump the RH640 sheet. The sheets have been drawn with zero thickness for better clarity.

Fig. 2
Fig. 2

Peak emission from the RH640 sheet pumped by the laser radiation at 590 nm from the PM567 sheet as a function of their separation. The solid line corresponds to the theoretical fit based on radiative transfer.

Fig. 3
Fig. 3

FWHM of the emission from the RH640 sheet pumped by the laser radiation at 590 nm from the PM567 sheet as a function of their separation. The solid curve corresponds to the theoretical fit based on radiative transfer.

Fig. 4
Fig. 4

Laser emission from a three-layer stack consisting of the PM567 and RH640 sheets and a 500-μm cell containing a 2 × 10−3 M solution of LD700 in methanol.

Equations (1)

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F a b = 1 2 { 1 b 2 + s 2 a 2 [ b 4 + 2 ( s 2 a 2 ) b 2 + ( s 2 + a 2 ) 2 ] 1 / 2 } ,

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