Origin of femtosecond laser induced periodic nanostructure on diamond

Bibliographic Details
Title: Origin of femtosecond laser induced periodic nanostructure on diamond
Authors: A. Abdelmalek, B. Sotillo, Z. Bedrane, V. Bharadwaj, S. Pietralunga, R. Ramponi, E.-H. Amara, S. M. Eaton
Source: AIP Advances, Vol 7, Iss 10, Pp 105105-105105-10 (2017)
Publisher Information: AIP Publishing LLC, 2017.
Publication Year: 2017
Collection: LCC:Physics
Subject Terms: Physics, QC1-999
More Details: We study the evolution of periodic nanostructures formed on the surface of diamond by femtosecond laser irradiation delivering 230 fs pulses at 1030 nm and 515 nm wavelengths with a repetition rate of 250 kHz. Using scanning electron microscopy, we observe a change in the periodicity of the nanostructures by varying the number of pulses overlapping in the laser focal volume. We simulate the evolution of the period of the high spatial frequency laser induced periodic surface structures at the two wavelengths as a function of number of pulses, accounting for the change in the optical properties of diamond via a generalized plasmonic model. We propose a hypothesis that describes the origin of the nanostructures and the principal role of plasmonic excitation in their formation during multipulse femtosecond laser irradiation.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2158-3226
Relation: https://doaj.org/toc/2158-3226
DOI: 10.1063/1.5001942
Access URL: https://doaj.org/article/5b9a0baecb3245a589b19a361e7eb83e
Accession Number: edsdoj.5b9a0baecb3245a589b19a361e7eb83e
Database: Directory of Open Access Journals
More Details
ISSN:21583226
DOI:10.1063/1.5001942
Published in:AIP Advances
Language:English