On the Possibility of Studying the Fraction of Inhomogeneities in Optical Nonlinear Media Using Time-Resolved Inline Digital Holography

A. V. Belashov, C. J. Cheng, N. V. Petrov*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)

摘要

Abstract: An approach to determining the fraction of inhomogeneities of the optical nonlinear properties of a transparent medium characterized by a spatial variation of nonlinear coefficient of refractive index n2 has been considered. The data has been recorded by the method of inline digital holography with femtosecond time resolution, during which, as the time delay between the pump and the probe pulses changes, a series of inline digital probe holograms has been recorded in the Fresnel diffraction zone. The digital holograms contain Fresnel diffraction patterns with the information about induced degenerate noncollinear phase modulation formed in the presence of inhomogeneities of optical nonlinear properties. The developed algorithm is based on the calculation of the diffraction patterns Fourier spectrum and analysis of the intensity at zero spatial frequency. The proposed method has been validated in numerical simulation.

原文英語
頁(從 - 到)681-689
頁數9
期刊Technical Physics
66
發行號5
DOIs
出版狀態已發佈 - 2021 5月

ASJC Scopus subject areas

  • 物理與天文學(雜項)

指紋

深入研究「On the Possibility of Studying the Fraction of Inhomogeneities in Optical Nonlinear Media Using Time-Resolved Inline Digital Holography」主題。共同形成了獨特的指紋。

引用此