Optical limiting with C60 solutions

Alan Kost, John E. Jensen, Marvin B. Klein, S. W. McCahon, M. B. Haeri, M. E. Ehritz

Research output: Contribution to journalConference articlepeer-review

14 Scopus citations


We examine optical limiting with C60 solutions for nanosecond optical pulses at 532 nm and 694 nm and microsecond pulses at 514 nm. When the input fluence is less than 50 J/cm2, optical limiting is due to a combination of reverse saturable absorption (excited state absorption) and self-defocusing. Nonlinear scattering was not observed. For a peak input fluence greater than 50 J/cm2, an acoustic report and broadband emission indicate that optical breakdown occurs. At 532 nm, optical limiting for C60-toluene is comparable to carbon-black suspension (CBS). For use at 694 nm, C60-toluene has a larger excited state absorption than at 532 nm, which partially compensates a much smaller ground state absorption. For microsecond optical pulses, C60 appears to be a better optical limiter than CBS.

Original languageEnglish (US)
Pages (from-to)78-90
Number of pages13
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jul 6 1994
Externally publishedYes
EventNonlinear Optical Materials for Switching and Limiting 1994 - Orlando, United States
Duration: Apr 4 1994Apr 8 1994

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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