Time-resolved inline digital holography for measurement of optical nonlinear properties of quantum dots on substrates

Andrey V. Belashov; C. J. Cheng; Nikolay V. Petrov

doi:10.1117/12.2547709

28 February 2020 Time-resolved inline digital holography for measurement of optical nonlinear properties of quantum dots on substrates

Andrey V. Belashov, C. J. Cheng, Nikolay V. Petrov

Author Affiliations +

Proceedings Volume 11278, Ultrafast Phenomena and Nanophotonics XXIV; 1127810 (2020) https://doi.org/10.1117/12.2547709
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

This work further develops a recently proposed time-resolved inline digital holography (TRIDH) [Petrov, N. V. et al. Opt. Lett. 43, 3481 (2018)] for studying degenerate phase modulation induced by an inclined collimated pump beam in the glass substrate with the quantum dots at the surface. Similar to many techniques for measuring nonlinear properties of materials, it is based on a comparison of the prediction obtained by the mathematical model of the phenomenon with experimental data. We have extended the mathematical model for the case of interaction of two femtosecond laser pulses in the double-layered sample. The impact of the ratio between nonlinear refractive indexes of two layers and their thicknesses on induced phase modulation is analyzed.

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Andrey V. Belashov, C. J. Cheng, and Nikolay V. Petrov "Time-resolved inline digital holography for measurement of optical nonlinear properties of quantum dots on substrates", Proc. SPIE 11278, Ultrafast Phenomena and Nanophotonics XXIV, 1127810 (28 February 2020); https://doi.org/10.1117/12.2547709

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