Structure property relationships for the nonlinear optical response of fullerenes

Kailash C. Rustagi; Lavanya M. Ramaniah; Selvakumar V. Nair

doi:10.1117/12.196139

28 November 1994 Structure property relationships for the nonlinear optical response of fullerenes

Kailash C. Rustagi, Lavanya M. Ramaniah, Selvakumar V. Nair

Proceedings Volume 2284, Fullerenes and Photonics; (1994) https://doi.org/10.1117/12.196139
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

We present a phenomenological theory of nonlinear optical response of fullerenes. An empirical tight-binding model is used in conjunction with a classical electromagnetic picture for the screening. Since in bulk media such a picture of screening corresponds to the self- consistent field approach, the only additional approximation involved in our approach is the neglect of nonlocality. We obtain reliable estimates for the linear and nonlinear susceptibilities of C₆₀, C₇₀, C₇₆ and other pure carbon fullerenes and also substituted fullerenes. The relatively large values of (beta) that we obtain for C₇₆ and substituted fullerenes appear promising for the development of fullerene-based nonlinear optical materials. Our phenomenological picture of screening provides a good understanding of the linear absorption spectra of higher fullerenes and predicts that a comparison of the one-photon and multi-photon spectra will provide an insight into screening effects in these systems.

Citation Download Citation

Kailash C. Rustagi, Lavanya M. Ramaniah, and Selvakumar V. Nair "Structure property relationships for the nonlinear optical response of fullerenes", Proc. SPIE 2284, Fullerenes and Photonics, (28 November 1994); https://doi.org/10.1117/12.196139

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