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Kvantovaya Elektronika, 2018, Volume 48, Number 8, Pages 755–760 (Mi qe16870)  

This article is cited in 2 scientific papers (total in 2 papers)

Interaction of laser radiation with matter. Laser plasma

Nano- and femtosecond high-repetition-rate multipulse laser irradiation of dehydrated bone tissue: role of accumulated heat and model of cooling

A. V. Belikov, A. A. Shamova, G. D. Shandybina*, E. B. Yakovlev

St. Petersburg National Research University of Information Technologies, Mechanics and Optics

Abstract: A model is proposed to describe the cooling of a biotissue surface after irradiation by a series of laser pulses. The spatial distribution of heat accumulated by the surface of a hard biotissue irradiated by nano- and femtosecond laser pulses is qualitatively estimated as a function of the pulse repetition rate. The obtained results are compared with the data of experimental irradiation of dry bone with both nanosecond and femtosecond laser pulses. The key contribution of the variation of the biotissue optical characteristics to the dependence of heat, accumulated by its surface, on the repetition rate of nanosecond laser pulses is demonstrated. The mechanism of the pulse repetition rate affecting the residual heat in the biotissue is more complex and requires adequate consideration of the change in its optical and thermophysical parameters. The application of the cooling model allowed substantial confirmation of the key role of the accumulated heat in the process of hard tissue carbonisation around the area of laser impact and the necessity of external cooling in the course of high-repetition-rate multipulse laser processing using both nanosecond and femtosecond pulses.

Keywords: nanosecond and femtosecond laser pulses, hard biological tissues, carbonisation, accumulated heat.

Funding Agency Grant Number
ITMO 617033

* Author to whom correspondence should be addressed

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English version:
Quantum Electronics, 2018, 48:8, 755–760

Bibliographic databases:

Received: 31.03.2018
Revised: 21.05.2018

Citation: A. V. Belikov, A. A. Shamova, G. D. Shandybina, E. B. Yakovlev, “Nano- and femtosecond high-repetition-rate multipulse laser irradiation of dehydrated bone tissue: role of accumulated heat and model of cooling”, Kvantovaya Elektronika, 48:8 (2018), 755–760 [Quantum Electron., 48:8 (2018), 755–760]

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  • http://mi.mathnet.ru/eng/qe/v48/i8/p755

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    Citing articles on Google Scholar: Russian citations, English citations
    Related articles on Google Scholar: Russian articles, English articles

    This publication is cited in the following articles:
    1. Quantum Electron., 49:1 (2019), 52–58  mathnet  crossref  isi  elib
    2. E. Yakovlev, G. Shandybina, A. Shamova, Biomed. Opt. Express, 10:6 (2019), 3030–3040  crossref  isi
  • Квантовая электроника Quantum Electronics
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