Femtosecond Laser-Induced Periodical Nanomodification of Surface Composition
- Authors: Ionin A.A.1, Kudryashov S.I.1, Makarov S.V.2
-
Affiliations:
- Lebedev Physical Institute, Russian Academy of Sciences
- ITMO University
- Issue: Vol 53, No 16 (2019)
- Pages: 2094-2099
- Section: Nanostructures Technology
- URL: https://journals.rcsi.science/1063-7826/article/view/207597
- DOI: https://doi.org/10.1134/S106378261912011X
- ID: 207597
Cite item
Abstract
Nanoscale periodical chemical composition modification of different two-component compound materials GaAs, CdTe, W0.5C and TiC was realized for the first time through multi-shot femtosecond laser irradiation of their surfaces. The resulting surface modification represents periodical nanoscale ripples with different chemical composition in valleys and ridges. The underlying mechanism is related to a sequence of elementary processes, such as laser excitation surface plasmon-polariton, their interference with the incident laser radiation, inhomogeneous surface heating and incongruent cavitation-like material removal. The latter mechanism is responsible for higher evaporation rate of the components with higher volatility, resulting in growth of surface concentration of low-volatility components.
About the authors
A. A. Ionin
Lebedev Physical Institute, Russian Academy of Sciences
Author for correspondence.
Email: aion@sci.lebedev.ru
Russian Federation, Moscow, 119991
S. I. Kudryashov
Lebedev Physical Institute, Russian Academy of Sciences
Author for correspondence.
Email: sergeikudryashov12@gmail.com
Russian Federation, Moscow, 119991
S. V. Makarov
ITMO University
Author for correspondence.
Email: makarov_sergey_vl@mail.ru
Russian Federation, Saint-Petersburg, 197022