New aspects on the interpretation of Z-scan data

Daniel G. McLean; Paul A. Fleitz; Richard L. Sutherland

doi:10.1117/12.253481

7 October 1996 New aspects on the interpretation of Z-scan data

Daniel G. McLean, Paul A. Fleitz, Richard L. Sutherland

Proceedings Volume 2853, Nonlinear Optical Liquids; (1996) https://doi.org/10.1117/12.253481
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

Z-scan profiles very different than the typical peak-valley signatures have been observed. In the closed over open ratio data, a feature centered around z equals 0 and with normalized transmission greater than 1 has been observed in three classes of materials. Experimental artifacts are ruled out. In one class, tolane melts, the usual peak and valley signature is not observed even at low irradiances. In the other two material classes, C₆₀ fullerene solutions and benzophenone-thiophene polymer solutions, the usual signature is observed at low irradiances. A model based on the Gaussian decomposition method is used to interpret the data. This analysis leads to the interpretation of the observations as a diffractive effect arising from the distorted amplitude profile due to nonlinear absorption.

Citation Download Citation

Daniel G. McLean, Paul A. Fleitz, and Richard L. Sutherland "New aspects on the interpretation of Z-scan data", Proc. SPIE 2853, Nonlinear Optical Liquids, (7 October 1996); https://doi.org/10.1117/12.253481

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