Optical limiting with C60 solutions

Alan R. Kost; John E. Jensen; Marvin B. Klein; Stephen William McCahon; M. B. Haeri; Michael E. Ehritz

doi:10.1117/12.179574

6 July 1994 Optical limiting with C₆₀ solutions

Alan R. Kost, John E. Jensen, Marvin B. Klein, Stephen William McCahon, M. B. Haeri, Michael E. Ehritz

Proceedings Volume 2229, Nonlinear Optical Materials for Switching and Limiting; (1994) https://doi.org/10.1117/12.179574
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

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.

Citation Download Citation

Alan R. Kost, John E. Jensen, Marvin B. Klein, Stephen William McCahon, M. B. Haeri, and Michael E. Ehritz "Optical limiting with C₆₀ solutions", Proc. SPIE 2229, Nonlinear Optical Materials for Switching and Limiting, (6 July 1994); https://doi.org/10.1117/12.179574

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