Application of Photothermal Digital Interferometry for Nonlinear Refractive Index Measurements within a Kerr Approximation
Source abstract
Abstract
Abstract The methodology of Photothermal Interferometry implemented through off-axis digital holography for the nonlinear refractive index measurements of optical media with the thermal mechanism of nonlinearity is presented. An experimental appraisal is done on the example of chlorophyllin 1% solution in ethyl alcohol. It allows us to estimate the effective value of nonlinear refractive index as − 0.65 · 10 − 3 cm2/W. The comparison of the experimental result with data obtained by means of a reference approach was performed. Possible errors lead to a mismatch between them are highlighted and analyzed.
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Research context
OpenAlex topics: Nonlinear Optical Materials Studies · Photoacoustic and Ultrasonic Imaging · Advanced Fluorescence Microscopy Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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