Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Impact of Hybrid Electromagnetic Surface Modes on the Formation of Low Spatial Frequency LIPSS: A Universal Approach
Δημιουργός/Συγγραφέας:	Perrakis, George [EL] Τσιλιπάκος Οδυσσέας[EN] Tsilipakos, Odysseas Tsibidis, George D. Stratakis, Emmanuel
Ημερομηνία:	2024
Γλώσσα:	Αγγλικά
ISSN:	1863-8880 1863-8899
DOI:	10.1002/lpor.202301090
Περίληψη:	In this article, the impact of the excited electromagnetic surface modes in a comprehensive investigation of the formation of laser-induced periodic surface structures (LIPSS) is analyzed. It is demonstrated that the electromagnetic origin of low spatial-frequency LIPSS (LSFL) is the frequency detuning between propagating and localized modes due to their coupling/hybridization. The influence of the pattern profile, inhomogeneity, and material type on the coupling strength, electric-field spatial distribution, and associated near-field scattering are highlighted. Exploiting the potential of the approach, evidence of a universal manifestation of LSFLs is provided irrespective of the material and the authors are able to predict and validate the experimentally-proven lower limit of LSFL periodicity (i.e., λL/2, where λL stands for the laser wavelength). Furthermore, the analysis of the electromagnetic modes predicts that the periodicity of LSFL is practically unaffected by the laser fluence, while a suppression of LSFL at high excitation levels or large number of pulses is also predicted. It is also shown that plasmonic-active materials are not necessary for LSFL formation perpendicular to polarization. Toward these directions, an important generic metric, namely the resonance quality factor, is additionally inserted. The approach can, thus, serve as a guide for controlling laser-induced surface topography.
Τίτλος πηγής δημοσίευσης:	Laser & Photonics Reviews
Θεματική Κατηγορία:	[EL] Εφαρμοσμένη οπτική. Φωτονική[EN] Applied optics. Photonics [EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry
Λέξεις-Κλειδιά:	Coupled electromagnetic surface modes Laser-induced subwavelength ripples Nanoplasmonics Periodic surface structures Ultrafast optics
EU Grant:	Horizon 2020 Framework Programme
EU Grant identifier:	101007417 101091644
Κάτοχος πνευματικών δικαιωμάτων:	© 2024 The Authors. Laser & Photonics Reviews published by Wiley-VCH GmbH
Όροι και προϋποθέσεις δικαιωμάτων:	This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://doi.org/10.1002/lpor.202301090
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο