Optical limiting and bistability of a σ - π photoconductive copolymer

  • Heping Zeng*
  • , Chengyou Liu
  • , Satoshi Tokura
  • , Mitsuo Kira
  • , Yusaburo Segawa
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Optical nonlinearity of a σ-π photoconductive copolymer, poly(disilanylene-2,2-bipyridine-5,5-diyl) ruthenium complex, has been investigated in chloroform solution of various concentrations. The nonlinear optical absorption resulted in optical limiting, optical bistability, and laser pulse compression for nanosecond pulses at the wavelength of 532 nm. Theoretical analyses showed that the optical absorptive nonlinearity was dependent on the photogenerated excitons and exciton-exciton couplings.

Original languageEnglish
Pages (from-to)71-77
Number of pages7
JournalChemical Physics Letters
Volume331
Issue number1
DOIs
StatePublished - 24 Nov 2000

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