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
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Journal ArticleDOI
Femtosecond laser-induced large area of periodic structures on chalcogenide glass via twice laser direct-writing scanning process
Xiaohan Yu,Qingwei Zhang,Dongfeng Qi,Shiwei Tang,Shixun Dai,Peiqing Zhang,Yinsheng Xu,Xiang Shen +7 more
TL;DR: In this article, the authors presented a theoretical and experimental study for the evolution of femtosecond laser direct-writing induced large area of periodic surface structures on As2S3 glass.
Journal ArticleDOI
Surface morphology and phase transformations of femtosecond laser-processed sapphire
TL;DR: In this paper, the morphological and structural modifications induced in sapphire by surface treatment with femtosecond laser radiation were studied, and it was shown that the spherical nanoparticles and the composite particles are amorphous, while the resolidified droplets and the angular particles, present a crystalline α-alumina structure.
Journal ArticleDOI
Ultrafast laser-induced morphological transformations
TL;DR: In this paper, the formation of laser-induced surface micro-and nanostructures and their emerging capabilities are reviewed, and some of the emerging capabilities of such surface morphologies are discussed.
Journal ArticleDOI
Nonlinear optical dynamics during femtosecond laser nanostructuring of a silicon surface
Andrey A. Ionin,Sergey I. Kudryashov,Sergey I. Kudryashov,Sergey V. Makarov,Andrey A. Rudenko,Leonid V. Seleznev,Dmitry V. Sinitsyn,Vladimir I Emel'yanov +7 more
TL;DR: In this paper, non-linear cumulative self-organization dynamics of femtosecond laser-induced surface relief ripples were revealed on a silicon surface as their primary appearance, degradation and revival, reflecting ultrafast nonlinear dynamics of corresponding optical interference surface patterns.
Journal ArticleDOI
Finite-difference time-domain modeling of laser -induced periodic surface structures
Gerardus Richardus, Bernardus, Engelina Römer,J.Z.P. Skolski,J. Vincenc Oboňa,A.J. Huis in 't Veld +3 more
TL;DR: In this paper, a finite-difference time-domain (FDTD) method was employed to numerically solve the two coupled Maxwell's curl equations, for linear, isotropic, dispersive materials with no magnetic losses.
References
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Journal ArticleDOI
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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.