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Updated: Aug 8, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
Published on: January 3, 2016
Single-shot measurement of nonlinear absorption and nonlinear refraction
J Jayabalan1, Asha Singh, Shrikant M Oak
1Centre for Advanced Technology, Ultrafast Studies Section, Indore, India. jjaya@cat.ernet.in
Abstract:
A single-shot method for measurement of nonlinear optical absorption and refraction is described and analyzed. A spatial intensity variation of an elliptical Gaussian beam in conjugation with an array detector is the key element of this method. The advantages of this single-shot technique were demonstrated by measuring the two-photon absorption and free-carrier absorption in GaAs as well as the nonlinear refractive index of CS2 using a modified optical Kerr setup.
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