Dual-arm Z-scan Technique to Extract Dilute Solute Nonlinearities from Solution Measurements
Document Type
Article
Publication Date
12-1-2012
Abstract
We present a technique in which small solute nonlinearities may be extracted from large solvent signals by performing simultaneous Z-scans on two samples (solvent and solution). By using a dual-arm Z-scan apparatus with identical arms, fitting error in determining the solute nonlinearity is reduced because the irradiance fluctuations are correlated for both the solvent and solution measurements. To verify the sensitivity of this technique, the dispersion of nonlinear refraction of a squaraine molecule is measured. Utilizing this technique allows for the effects of the solvent n2 to be effectively eliminated, thus overcoming a longstanding problem in nonlinear optical characterization of organic dyes. Abstract © OSA.
Source Publication
Optical Materials Express
Recommended Citation
Manuel R. Ferdinandus, Matthew Reichert, Trenton R. Ensley, Honghua Hu, Dmitry A. Fishman, Scott Webster, David J. Hagan, and Eric W. Van Stryland, "Dual-arm Z-scan technique to extract dilute solute nonlinearities from solution measurements," Opt. Mater. Express 2, 1776-1790 (2012).
Comments
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