A method for measuring the nonlinear refractive index from the contrast of an amplitude object image in the optical scheme with phase Zernike filters based on electronic Kerr nonlinearity
| Autor: | A. N. Stepanov, A. A. Murzanev, A. I. Korytin, A. V. Romashkin, D. I. Kulagin |
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| Rok vydání: | 2017 |
| Předmět: |
Zernike polynomials
media_common.quotation_subject Phase (waves) Physics::Optics 02 engineering and technology 01 natural sciences law.invention symbols.namesake Optics law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Contrast (vision) Z-scan technique Electrical and Electronic Engineering 010306 general physics media_common Physics business.industry Statistical and Nonlinear Physics Filter (signal processing) Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Nonlinear system Amplitude symbols 020201 artificial intelligence & image processing business |
| Zdroj: | Quantum Electronics. 47:245-247 |
| ISSN: | 1468-4799 1063-7818 |
| DOI: | 10.1070/qel16308 |
| Popis: | We propose a method for determining the nonlinear refractive index from the image contrast of amplitude objects in the phase-contrast scheme with a sample acting as a phase Zernike filter based on the electronic Kerr nonlinearity. This method implies the measurement of the calibration dependence of the contrast of an amplitude object image on the laser pulse energy for a test sample with a known nonlinearity and makes it possible to find the nonlinear refractive index of samples under study using a single laser pulse. |
| Databáze: | OpenAIRE |
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