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Optics Letters

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  • Vol. 27, Iss. 9 — May. 1, 2002
  • pp: 740–742

Enhanced optical limiting performance of a nonlinear absorber in a solution containing scattering nanoparticles

G. S. Maciel, N. Rakov, and Cid B. de Araújo  »View Author Affiliations


Optics Letters, Vol. 27, Issue 9, pp. 740-742 (2002)
http://dx.doi.org/10.1364/OL.27.000740


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Abstract

The optical limiting performance of a water-soluble porphyrin derivative is shown to be improved when small-sized (400-nm-diameter) nonabsorbing polystyrene spheres are added to the solution. The optical limiting enhancement is attributed to absorption of diffusive photons that experience longer light pathways than ballistic photons. The effect is demonstrated for nanosecond laser excitation at 532 nm.

© 2002 Optical Society of America

OCIS Codes
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials
(230.1150) Optical devices : All-optical devices
(290.5850) Scattering : Scattering, particles

Citation
G. S. Maciel, N. Rakov, and Cid B. de Araújo, "Enhanced optical limiting performance of a nonlinear absorber in a solution containing scattering nanoparticles," Opt. Lett. 27, 740-742 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-9-740


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