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Proceedings Paper

High-fluence laser photoluminescence in C60 solutions
Author(s): Daniel G. McLean; Donna M. Brandelik; Mark C. Brant; Richard L. Sutherland; Paul A. Fleitz
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Paper Abstract

The nonlinear absorptive properties of C60 are of significant interest. In this paper we describe spectral emission measurements on C60/toluene solutions and neat toluene in the fluence regime of 3 to 1500 J/cm2 excited by nanosecond and picosecond pulses. Ten emission lines between 547 nm and 635 nm are observed in both toluene and C60 solutions. These lines are found to correlate well with published Raman spectra of toluene. In C60 solutions an additional broad double feature is observed with peaks at 692 nm and 732 nm matching the published fluorescence spectra of C60. At the highest fluences a broad new feature appears at 655 nm, grows nonlinearly, and saturates in the C60 solution. In the blue spectral region, at wavelengths shorter than the pump wavelength, a plethora of lines are observed in neat toluene between 340 and 520 nm and found to correlate with molecular disassociation products. No evidence for breakdown, however, is apparent in the C60 solutions. Both neat toluene and C60 solutions show evidence of photochemical reaction.

Paper Details

Date Published: 15 May 1994
PDF: 8 pages
Proc. SPIE 2143, Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications, (15 May 1994); doi: 10.1117/12.173831
Show Author Affiliations
Daniel G. McLean, Science Applications International Corp. (United States)
Donna M. Brandelik, Science Applications International Corp. (United States)
Mark C. Brant, Science Applications International Corp. (United States)
Richard L. Sutherland, Science Applications International Corp. (United States)
Paul A. Fleitz, Systran Corp. (United States)


Published in SPIE Proceedings Vol. 2143:
Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications
Seth R. Marder; Joseph W. Perry, Editor(s)

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