Femtosecond degenerate four-wave mixing in C60 and C70 fullerenes

Tallis Y. Chang; H. O. Marcy; M. J. Rosker; J. Khoury; J. Khoury; K. Hansen; K. Hansen; R. L. Whetten; R. L. Whetten

Quantum Electronics and Laser Science Conference
OSA Technical Digest (Optica Publishing Group, 1992),
paper QTuH2

Femtosecond degenerate four-wave mixing in C₆₀ and C₇₀ fullerenes

Tallis Y. Chang, H. O. Marcy, M. J. Rosker, J. Khoury, K. Hansen, and R. L. Whetten

Quantum Electronics and Laser Science Conference 1992

Anaheim, California United States
10–15 May 1992
ISBN: 1-55752-540-5

From the session
Optical Interactions with New Materials (QTuH)

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T. Y. Chang, H. O. Marcy, M. J. Rosker, J. Khoury, K. Hansen, and R. L. Whetten, "Femtosecond degenerate four-wave mixing in C60 and C70 fullerenes," in Quantum Electronics and Laser Science Conference, E. Ippen, S. Chu, J. Shah, and C. Weiman, eds., Vol. 13 of OSA Technical Digest (Optica Publishing Group, 1992), paper QTuH2.

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Abstract

Buckminster fullerenes (C₆₀, C₇₀,...) represent a new class of nonlinear optical materials. The underlying physical mechanism responsible for the large optical nonlinearity has been suggested to be electronic in nature, since C₆₀ is know to possess highly delocalized π electrons. Degenerate four-wave mixing (DFWM) measurements in C₆₀¹ have demonstrated that fullerenes display non- linearities as large as 10⁻⁸ esu. We report an investigation of the DFWM response dynamics probed using femtosecond optical pulses and describe response features occurring on femtosecond and picosecond time scales.

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