Relaxation dynamics of femtosecond-laser-induced temperature modulation on the surfaces of metals and semiconductors

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00466424" target="_blank" >RIV/68378271:_____/16:00466424 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.apsusc.2015.10.159" target="_blank" >http://dx.doi.org/10.1016/j.apsusc.2015.10.159</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2015.10.159" target="_blank" >10.1016/j.apsusc.2015.10.159</a>

Result language

angličtina

Original language name

Relaxation dynamics of femtosecond-laser-induced temperature modulation on the surfaces of metals and semiconductors

Original language description

Formation of laser-induced periodic surface structures is a complicated phenomenon which involves periodic spatial modulation of laser energy absorption on the irradiated surface, transient changes in optical response, surface layer melting and/or ablation. The listed processes strongly depend on laser fluence and pulse duration as well as on material properties. This paper is aimed at studying the spatiotemporal evolution of a periodic modulation of the deposited laser energy, once formed upon irradiation of metal(Ti) and semiconductor(Si) surfaces.Assuming that the incoming laser pulse interferes with a surface electromagnetic wave, the resulting sinusoidal modulation of the absorbed laser energy is introduced into a two-dimensional two-temperature model developed for titanium and silicon. Simulations reveal that the lattice temperature modulation on the surfaces of both materials following from the modulated absorption remains significant for longer than 50ps after the laser pulse.

Czech name

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Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

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Project

<a href="/en/project/ED2.1.00%2F01.0027" target="_blank" >ED2.1.00/01.0027: HiLASE: New lasers for industry and research</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Surface Science

ISSN

0169-4332

e-ISSN

—

Volume of the periodical

374

Issue of the periodical within the volume

Jun

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

157-164

UT code for WoS article

000375937300026

EID of the result in the Scopus database

2-s2.0-84949519117