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
Oxidation ruled transition from normal to anomalous periodic structures with femtosecond laser irradiation on Cr/Si films.
TL;DR: In this paper, the authors demonstrate a periodic structure transition from normal to anomalous morphology, upon femtosecond laser irradiation on 50-nm thick Cr/Si films in an air pressure-tunable chamber.
Journal ArticleDOI
Regulating disordered plasmonic nanoparticles into polarization sensitive metasurfaces
Dissertation
Femtosecond Laser Interactions at Interfaces and Their Applications.
TL;DR: Femtosecond Laser Interactions at Interfaces and Their Applications as discussed by the authors, and their applications are discussed in detail in Section 3.1.1] and Section 2.2.
Book ChapterDOI
Micro- and Nano-Structuring of Materials via Ultrashort Pulsed Laser Ablation
Chung-Wei Cheng,Jinn-Kuen Chen +1 more
TL;DR: In this article, the authors considered the complex physics associated with ultrashort pulsed laser (USPL) interaction and ablation has advanced significantly owing to a great many theoretical and experimental studies in the past 20 years.
Journal ArticleDOI
Total polarization conversion using subwavelength laser-induced periodic surface structures on stainless steel
Mahmoud H. Elshorbagy,Luis Miguel Sanchez-Brea,Jeronimo Buencuerpo,Jesus del Hoyo,Angela Soria-Garcia,Veronica Pastor-Villarrubia,Alejandro San Blas,Ainara Rodriguez,Santiago M. Olaizola,Javier Alda +9 more
TL;DR: In this paper , a laser-induced periodic surface structure (LIPSS) was used on stainless steel to modify the polarization state of the reflected radiation at the IR band, and the geometry of the subwavelength grating was found to work as an optical retarder that transforms a linearly polarized light into a circularly polarized wave.
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.