Optical limiting and excited-state absorption in fullerene solutions and doped glasses

Duncan W. McBranch; Laura B. Smilowitz; Victor I. Klimov; Aaron C. Koskelo; Jeanne M. Robinson; Benjamin R. Mattes; Jan C. Hummelen; Fred Wudl; James C. Withers; Nicholas F. Borrelli

doi:10.1117/12.228119

8 December 1995 Optical limiting and excited-state absorption in fullerene solutions and doped glasses

Duncan W. McBranch, Laura B. Smilowitz, Victor I. Klimov, Aaron C. Koskelo, Jeanne M. Robinson, Benjamin R. Mattes, Jan C. Hummelen, Fred Wudl, James C. Withers, Nicholas F. Borrelli

Author Affiliations +

Proceedings Volume 2530, Fullerenes and Photonics II; (1995) https://doi.org/10.1117/12.228119
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We report the ground-state and excited-state optical absorption spectra in the visible and near infrared for several substituted fullerenes and higher fullerenes in toluene solutions. Based on these measurements, broadband predictions of the optical limiting performance of these molecules can be deduced. These predictions are then tested in the wavelength range from 532 nm to 700 nm in intensity-dependent transmission measurements. We observe optical limiting in all fullerenes measured; higher fullerenes show the greatest potential for limiting in the near infrared (650 - 1000 nm), while substituted C₆₀ shows optimal limiting in the visible (450 - 700 nm). We observe dramatically reduced limiting for solid forms of C₆₀ (thin films and C₆₀-doped porous glasses), indicating that efficient optical limiting in fullerenes requires true molecular solutions.

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Duncan W. McBranch, Laura B. Smilowitz, Victor I. Klimov, Aaron C. Koskelo, Jeanne M. Robinson, Benjamin R. Mattes, Jan C. Hummelen, Fred Wudl, James C. Withers, and Nicholas F. Borrelli "Optical limiting and excited-state absorption in fullerene solutions and doped glasses", Proc. SPIE 2530, Fullerenes and Photonics II, (8 December 1995); https://doi.org/10.1117/12.228119

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