Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Investigation Of Nonlinear Optical Properties Of Quantum Dots Deposited Onto The Sample Glass Using Time-resolved Inline Digital Holography

Version 1 : Received: 26 January 2022 / Approved: 31 January 2022 / Online: 31 January 2022 (13:23:58 CET)

A peer-reviewed article of this Preprint also exists.

Belashov, A.V.; Shevkunov, I.A.; Kolesova, E.P.; Orlova, A.O.; Putilin, S.E.; Veniaminov, A.V.; Cheng, C.-J.; Petrov, N.V. Investigation of Nonlinear Optical Properties of Quantum Dots Deposited onto a Sample Glass Using Time-Resolved Inline Digital Holography. J. Imaging 2022, 8, 74. Belashov, A.V.; Shevkunov, I.A.; Kolesova, E.P.; Orlova, A.O.; Putilin, S.E.; Veniaminov, A.V.; Cheng, C.-J.; Petrov, N.V. Investigation of Nonlinear Optical Properties of Quantum Dots Deposited onto a Sample Glass Using Time-Resolved Inline Digital Holography. J. Imaging 2022, 8, 74.

Abstract

We report on the application of time-resolved inline digital holography to study the nonlinear optical properties of quantum dots deposited onto the sample glass. Fresnel diffraction patterns of the probe pulse due to noncollinear degenerate phase modulation induced by the femtosecond pump pulse were extracted from the set of inline digital holograms and analyzed. Absolute values of the nonlinear refractive index of both sample glass substrate and the deposited layer of quantum dots were evaluated using the proposed technique. To characterize the inhomogeneous distribution of samples’ nonlinear optical properties we proposed to plot an optical nonlinearity map calculated as a local standard deviation of diffraction patterns intensity induced by noncollinear degenerate phase modulation.

Keywords

nonlinear refractive index; noncolinear degenerate phase modulation; femtosecond pulses; quantum dots; inline digital holograms; pump-probe digital holography; diffraction patterns; digital holography; phase shift

Subject

Physical Sciences, Optics and Photonics

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