Enhanced optical limiting behavior of fullerene derivatives
Conference
·
OSTI ID:370793
- Los Alamos National Lab., NM (United States); and others
Measurements of the optical limiting behavior of several fullerenes and fullerene derivatives in the visible and near-infrared will be presented. The measurements include intensity-dependent transmission, z-scans, and time-resolved excited state absorption of the compounds in solution and in porous glass composites. Specific derivatives investigated include the isomers 5,6- and 6,6- phenyl-C{sub 61}-butyric acid cholesteryl esters of C{sub 60}. These derivatives exhibit increased solubility in organic solvents and enhanced optical limiting. Excited-state absorption is measured from 500-1000 nm with <1 picosecond resolution. The spectral and temporal information about the excited state can be used in combination with measurements of the ground state absorption cross section to predict optical limiting behavior due to reverse saturable absorption.
- OSTI ID:
- 370793
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
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