Journal ArticleDOI
Laser-induced periodic surface structure. I. Theory
TLDR
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.Abstract:
We develop a theory for laser-induced periodic surface structure by associating each Fourier component of induced structure with the corresponding Fourier component of inhomogeneous energy deposition just beneath the surface. We assume that surface roughness, confined to a region of height much less than the wavelength of light, is responsible for the symmetry breaking leading to this inhomogeneous deposition; we find strong peaks in this deposition in Fourier space, which leads to predictions of induced fringe patterns with spacing and orientation dependent on the angle of incidence and polarization of the damaging beam. The nature of the generated electromagnetic field structures and their relation to the simple "surface-scattered wave" model for periodic surface damage are discussed. Our calculation, which is for arbitrary angle of incidence and polarization, applies a new approach to the electrodynamics of randomly rough surfaces, introducing a variational principle to deal with the longitudinal fields responsible for local field, or "depolarization," corrections. For a $p$-polarized damaging beam our results depend on shape and filling factors of the surface roughness, but for $s$-polarized light they are essentially independent of these generally unknown parameters; thus an unambiguous comparison of our theory with experiment is possible.read more
Citations
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Journal ArticleDOI
Direct femtosecond laser surface nano/microstructuring and its applications
Anatoliy Y. Vorobyev,Chunlei Guo +1 more
TL;DR: In this article, a new field of direct femtosecond laser surface nano/microstructuring and its applications is reviewed, where the authors present a review of the current state-of-the-art in this field.
Journal ArticleDOI
Microstructuring of silicon with femtosecond laser pulses
TL;DR: In this paper, the authors report that silicon surfaces develop an array of sharp conical spikes when irradiated with 500 laser pulses of 100-fs duration, 10kJ/m2 fluence in 500-Torr SF6 or Cl2.
Journal ArticleDOI
Origin of laser-induced near-subwavelength ripples: interference between surface plasmons and incident laser
TL;DR: It is shown that short-pulse laser-induced classical ripples on dielectrics, semiconductors, and conductors exhibit a prominent "non-classical" characteristic-in normal incidence the periods are definitely smaller than laser wavelengths, which indicates that the simplified scattering model should be revised.
Journal ArticleDOI
Femtosecond laser-induced periodic surface structures
TL;DR: In this paper, the formation of laser-induced periodic surface structures (LIPSS) in different materials (metals, semiconductors, and dielectrics) upon irradiation with linearly polarized fs-laser pulses (τ,∼ 30-150 fs, λ, ∼, ∼ 800 nm) in air environment is studied experimentally and theoretically.
Journal ArticleDOI
Laser-Induced Periodic Surface Structures— A Scientific Evergreen
TL;DR: In this article, the current state in the field of laser-induced periodic surface structures (LIPSS) is reviewed, and the formation mechanisms are analyzed in ultrafast time-resolved scattering, diffraction, and polarization constrained double-pulse experiments.
References
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Journal ArticleDOI
Light Scattering by Small Particles
H. C. Van de Hulst,V. Twersky +1 more
TL;DR: Light scattering by small particles as mentioned in this paper, Light scattering by Small Particle Scattering (LPS), Light scattering with small particles (LSC), Light Scattering by Small Parts (LSP),
Journal ArticleDOI
Surface roughness and the enhanced intensity of Raman scattering by molecules adsorbed on metals
TL;DR: In this article, the anomalous intensity arises from preresonant or resonant excitations of conduction electron resonances in adsorbate covered metal bumps on the surface, which form a two-dimensional colliodlike layer which displays a collective resonance at a frequency which depends on the bump density.
Journal ArticleDOI
Laser-induced periodic surface structure. II. Experiments on Ge, Si, Al, and brass
TL;DR: In this article, the Fourier transform of the damage structure was extracted from the Fraunhofer diffraction pattern produced by reflecting a cw laser beam from the surface, and the results of a detailed investigation into the periodic damage structure that can be produced on nominally smooth surfaces of solids when they are irradiated with a single beam of intense laser radiation were reported.
Journal ArticleDOI
Role of cracks, pores, and absorbing inclusions on laser induced damage threshold at surfaces of transparent dielectrics.
TL;DR: The concentration of the electric field strength in the neighborhood of micropores and cracks may lower the nominal external intensity for electric avalanche breakdown by a factor 2-100 depending on the geometry of the crack and the dielectric constant.