Resonant optical nonlinearity of fullerenes in free-standing polymethyl methacrylate films

Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.354508

Title:	Resonant optical nonlinearity of fullerenes in free-standing polymethyl methacrylate films
Authors:	Ji, W. Tang, S.H. Xu, G.Q. Chan, H.S.O. Ng, S.C. Ng, W.W.
Issue Date:	1-Jan-1993
Citation:	Ji, W., Tang, S.H., Xu, G.Q., Chan, H.S.O., Ng, S.C., Ng, W.W. (1993-01-01). Resonant optical nonlinearity of fullerenes in free-standing polymethyl methacrylate films. Journal of Applied Physics 74 (6) : 3669-3672. ScholarBank@NUS Repository. https://doi.org/10.1063/1.354508
Abstract:	An experimental investigation was reported involving both the preparation of films of polymethyl methacrylate (PMMA) doped with fullerenes and the observation of resonant χ(3) at a wavelength of 608 nm. By conducting the degenerate four-wave mixing experiment and measuring irradiance-dependent transmission, the third-order nonlinear susceptibility of the films were determined to be of the order of 10-10 esu, and it was governed by its imaginary part. The observed nonlinear susceptibility was found to be primarily caused by excited-state absorption by comparing with the tight-binding theory and excited-state absorption model.
Source Title:	Journal of Applied Physics
URI:	http://scholarbank.nus.edu.sg/handle/10635/94718
ISSN:	00218979
DOI:	10.1063/1.354508
Appears in Collections:	Staff Publications

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