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Optics Letters

Optics Letters


  • Vol. 23, Iss. 10 — May. 15, 1998
  • pp: 777–779

Low-threshold lasing of a Rhodamine dye solution embedded with nanoparticle fractal aggregates

H. Z. Wang, F. L. Zhao, Y. J. He, X. G. Zheng, X. G. Huang, and M. M. Wu  »View Author Affiliations

Optics Letters, Vol. 23, Issue 10, pp. 777-779 (1998)

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The spectral and temporal emission properties of a Rhodamine (Rh) dye solution embedded with nanoparticle fractal aggregates are studied. An experiment on the pump-power density dependence of Rh emission spectra shows that the lasing threshold of a Rh6G solution embedded with TiO<sub>2</sub> nanoparticle fractal aggregates is significantly reduced compared with that of a neat dye solution. The mechanism of this reduction in lasing threshold is discussed, together with the lasing properties of narrow bandwidth and short duration.

© 1998 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(190.3970) Nonlinear optics : Microparticle nonlinear optics
(290.5850) Scattering : Scattering, particles
(300.6250) Spectroscopy : Spectroscopy, condensed matter
(300.6360) Spectroscopy : Spectroscopy, laser
(300.6500) Spectroscopy : Spectroscopy, time-resolved

H. Z. Wang, F. L. Zhao, Y. J. He, X. G. Zheng, X. G. Huang, and M. M. Wu, "Low-threshold lasing of a Rhodamine dye solution embedded with nanoparticle fractal aggregates," Opt. Lett. 23, 777-779 (1998)

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