Journal ArticleDOI
On the role of surface plasmon polaritons in the formation of laser-induced periodic surface structures upon irradiation of silicon by femtosecond-laser pulses
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In this paper, the formation of nearly wavelength-sized laser-induced periodic surface structures (LIPSSss) on single-crystalline silicon upon irradiation with single or multiple femtosecond-laser pulses (pulse duration τ=130Abstract:
The formation of nearly wavelength-sized laser-induced periodic surface structures (LIPSSs) on single-crystalline silicon upon irradiation with single or multiple femtosecond-laser pulses (pulse duration τ=130 fs and central wavelength λ=800 nm) in air is studied experimentally and theoretically. In our theoretical approach, we model the LIPSS formation by combining the generally accepted first-principles theory of Sipe and co-workers with a Drude model in order to account for transient intrapulse changes in the optical properties of the material due to the excitation of a dense electron-hole plasma. Our results are capable to explain quantitatively the spatial periods of the LIPSSs being somewhat smaller than the laser wavelength, their orientation perpendicular to the laser beam polarization, and their characteristic fluence dependence. Moreover, evidence is presented that surface plasmon polaritons play a dominant role during the initial stage of near-wavelength-sized periodic surface structures in fem...read more
Citations
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Journal ArticleDOI
Modelling periodic structure formation on 100Cr6 steel after irradiation with femtosecond-pulsed laser beams
George D. Tsibidis,Alexandros Mimidis,Alexandros Mimidis,Evangelos Skoulas,Evangelos Skoulas,Sabrina V. Kirner,Jörg Krüger,Jörn Bonse,Emmanuel Stratakis,Emmanuel Stratakis +9 more
TL;DR: In this article, the periodic structure formation upon femtosecond pulsed irradiation of chrome steel (100Cr6) for linearly polarised laser beams is explored, their spatial frequency is calculated and theoretical results are compared with experimental observations.
Journal ArticleDOI
Controlled ultrashort-pulse laser-induced ripple formation on semiconductors
George D. Tsibidis,Emmanuel Stratakis,Emmanuel Stratakis,Panagiotis A. Loukakos,Costas Fotakis,Costas Fotakis +5 more
TL;DR: In this paper, the interaction of ultrafast laser pulses with surfaces with the aim of analyzing the fundamental mechanisms during micro/nanoprocessing of the irradiated surfaces and investigate the perspectives and applications arising from the irradiation of novel complex and functional materials with simple as well as temporally modulated femtosecond laser pulses.
Journal ArticleDOI
Femtosecond laser fabrication of large-area periodic surface ripple structure on Si substrate
TL;DR: In this article, the fabrication of a large area uniformly distributed periodic nano-ripple structure on silicon substrate through the proper scanning of a line-shaped femtosecond laser beam was reported.
Journal ArticleDOI
Laser-induced periodic surface structures on titanium upon single- and two-color femtosecond double-pulse irradiation
TL;DR: A plasmonic model successfully explains the delay-dependence of the LIPSS on titanium and confirms the importance of the ultrafast energy deposition stage for LIPSs formation.
Journal ArticleDOI
Texturing metal surface with MHz ultra-short laser pulses
TL;DR: The role the heat accumulation plays on the evolution of ultra-short pulse laser-induced surface structures morphology when varying fluence, the number of scans and the repetition rate is shown for the first time.
References
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Book
Handbook of Optical Constants of Solids
TL;DR: In this paper, E.D. Palik and R.R. Potter, Basic Parameters for Measuring Optical Properties, and W.W.Hunter, Measurement of Optical Constants in the Vacuum Ultraviolet Spectral Region.
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Laser-induced periodic surface structure. I. Theory
TL;DR: In this paper, a theory for laser-induced periodic surface structure was developed by associating each Fourier component of induced structure with the corresponding Fourier components of inhomogeneous energy deposition just beneath the surface.
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Femtosecond laser ablation of silicon–modification thresholds and morphology
TL;DR: In this article, the initial modification and ablation of crystalline silicon with single and multiple Ti:sapphire laser pulses of 5 to 400 fs duration was investigated, and the authors found the phenomena amorphization, melting, re-crystallization, nucleated vaporization, and Ablation to occur with increasing laser fluence down to the shortest pulse durations.
Journal ArticleDOI
Generation of dense electron-hole plasmas in silicon
TL;DR: In this paper, the authors studied the generation of dense electron-hole plasmas in silicon with intense 100-fs laser pulses by time-resolved measurements of the optical reflectivity at 625 nm.