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Proceedings Paper

Optical limiting with C60 solutions
Author(s): Alan R. Kost; John E. Jensen; Marvin B. Klein; Stephen William McCahon; M. B. Haeri; Michael E. Ehritz
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Paper Abstract

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.

Paper Details

Date Published: 6 July 1994
PDF: 13 pages
Proc. SPIE 2229, Nonlinear Optical Materials for Switching and Limiting, (6 July 1994); doi: 10.1117/12.179574
Show Author Affiliations
Alan R. Kost, Hughes Research Labs. (United States)
John E. Jensen, Hughes Research Labs. (United States)
Marvin B. Klein, Hughes Research Labs. (United States)
Stephen William McCahon, Hughes Research Labs. (United States)
M. B. Haeri, Hughes Electro-Optical Systems (United States)
Michael E. Ehritz, Hughes Electro-Optical Systems (United States)

Published in SPIE Proceedings Vol. 2229:
Nonlinear Optical Materials for Switching and Limiting
M. J. Soileau, Editor(s)

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