Nonlinear absorption study of a C_60–toluene solution
Daniel G. McLeanScience Applications International Corporation, 101 Woodman Drive, Dayton, Ohio 45431Paul A. FleitzMaterials Directorate, Wright Laboratory, Wright–Patterson Air Force Base, Ohio 45433-6533T. PottengerMaterials Directorate, Wright Laboratory, Wright–Patterson Air Force Base, Ohio 45433-6533Richard L. SutherlandScience Applications International Corporation, 101 Woodman Drive, Dayton, Ohio 45431Mark C. BrantScience Applications International Corporation, 101 Woodman Drive, Dayton, Ohio 45431Donna M. BrandelikScience Applications International Corporation, 101 Woodman Drive, Dayton, Ohio 45431
1993en
ABI
Annotatsiya
Nonlinear absorption at 532 nm in a C60–toluene solution by using 8-ns and 30-ps laser pulses is reported. The transmittance for both pulse widths is fluence dependent. A five-level model of C60 is described that yields excellent agreement with both pulse-width data sets for incident fluences as high as approximately 1 J/cm2. Additional phenomena observed at higher fluences indicate that other mechanisms may be active and contribute to optical limiting in this regime. The application of C60 as an optical limiter material is discussed.
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