Laser Physics

, 18:434

Broadband optical limiting in the suspensions of lead sulfide nanoparticles

  • Q. S. Li
  • C. L. Liu
  • L. Y. Zang
  • Q. H. Gong
  • X. L. Yu
  • C. B. Cao
Nonlinear and Quantum Optics

DOI: 10.1134/s11490-008-4013-3

Cite this article as:
Li, Q.S., Liu, C.L., Zang, L.Y. et al. Laser Phys. (2008) 18: 434. doi:10.1134/s11490-008-4013-3

Abstract

Nanoparticles of lead sulfide (PbS) have been prepared by a surfactant micelle template-inducing reaction. These nanoparticles were dispersed in ethanol and investigated for their nonlinear optical properties by nanosecond laser pulses. Broadband optical limiting effects have been observed at the wavelengths of 355, 1064, and 430 nm and every 30 nm from 470 to 620 nm. The nonlinear light-scattering process in the suspensions of PbS nanoparticles was characterized at the wavelength of 532 nm. Nonlinear absorption and nonlinear scattering were deduced to be the mechanisms for the broadband optical limiting performance. The origins of the nonlinear scattering were discussed.

PACS numbers

81.07.Bc 42.65.-k 78.67.-n 

Copyright information

© MAIK Nauka 2008

Authors and Affiliations

  • Q. S. Li
    • 1
  • C. L. Liu
    • 1
  • L. Y. Zang
    • 1
  • Q. H. Gong
    • 1
  • X. L. Yu
    • 2
  • C. B. Cao
    • 2
  1. 1.Department of Physics and State Key Laboratory for Mesoscopic PhysicsPeking UniversityBeijingChina
  2. 2.Research Center of Material ScienceBeijing Institute of TechnologyBeijingChina

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