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Optical limiting properties of W2Ag4S 8(PPh3)4 and Mo2Ag4S 8(PPh3)4

  • Qing Chang*
  • , Yan Wang
  • , Hegen Zheng
  • , Yinglin Song
  • *Corresponding author for this work
  • Heilongjiang University
  • Nanjing University

Research output: Contribution to journalArticlepeer-review

Abstract

Optical limiting (OL) properties of two hexagonal prism metal clusters, W2Ag4S8(PPh3)4 and Mo2Ag4S8(PPh3)4 doped in polymethyl methacrylate (PMMA) polymer and DMF solutions, respectively, were contrastively investigated by using nanosecond laser pulses at 532 nm with a repetition rate of 1 Hz. Experimental results show that the output fluence of DMF solutions for the two samples are both lower than that of their PMMA polymers at a given input fluence; this means DMF solutions of W 2Ag4S8(PPh3)4 and Mo 2Ag4S8(PPh3)4 have better OL properties than that of solid PMMA polymers. The reason is explained by a stimulated scattering theory. That is because the scattering degree of solutions is stronger than that of the corresponding solid polymers due to large density perturbations for solution samples.

Original languageEnglish
Pages (from-to)3732-3734
Number of pages3
JournalPhysica B: Condensed Matter
Volume405
Issue number17
DOIs
StatePublished - 1 Sep 2010

Keywords

  • Hexagonal prism metal cluster
  • Optical limiting
  • Polymers
  • Stimulated scattering

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