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Optical and Quantum Electronics

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01-02-2017

Mutual influence of Auger and non-radiative recombination processes under silicon femtosecond laser irradiation

Authors: Alexandra Shamova, Galina Shandybina, Evgeny Yakovlev, Alexandra Georgieva

Published in: Optical and Quantum Electronics | Issue 2/2017

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Abstract

The results of theoretical study of the contribution of recombination processes in additional heating of the surface of monocrystalline silicon during multipulse femtosecond laser processing are presented to discussion. The numerical evaluations are made in regimes of the laser radiation below the ablation threshold, when the microgeometry of the surface is formed due to the processes of self-organization. The influence of Auger recombination processes on the photoexcitation of the semiconductor during the pulse and relaxation after the pulse is studied in detail. It is shown that the additional heating of the surface due to non-radiative recombination is extremely small at pulse repetition rate 10 Hz–1 MHz. Mutual influence of recombination processes of both types is shown.

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Title: Mutual influence of Auger and non-radiative recombination processes under silicon femtosecond laser irradiation
Authors: Alexandra Shamova
Galina Shandybina
Evgeny Yakovlev
Alexandra Georgieva
Publication date: 01-02-2017
Publisher: Springer US
Published in: Optical and Quantum Electronics / Issue 2/2017
Print ISSN: 0306-8919
Electronic ISSN: 1572-817X
DOI: https://doi.org/10.1007/s11082-017-0911-0

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