Direct femtosecond laser fabrication of antireflective layer on GaAs surface

Ионин, А. А.; Klimachev, Yu. M.; Kozlov, A. Yu.; Kudryashov, S. I.; Ligachev, A. E.; Makarov, Sergey; Селезнев, Л. В.; Sinitsyn, D. V.; Rudenko, A. A.; Khmelnitsky, R. A.

doi:10.1007/s00340-013-5350-4

Cited by 42 publications

(16 citation statements)

References 20 publications

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“…Multi shot (N ≈ 3-10 3 pulses) fs laser dry nano structuring of an atomically smooth Si(100) commer cial wafer surface by the linearly polarized 744 nm fs laser pulses resulted in one dimensional surface grat ings with their ridges perpendicular to the laser polar ization vector (the "normal" gratings [23,52]) and the periods Λ 744 , varying depending on N and F. The observed cumulative dependence Λ(N) is well known [53][54][55], with the corresponding ripple periods Λ decreasing by 30% for larger N due to the resulting increase in the ripple depth [55]. By contrast, the flu ence dependence is more related to photo excitation conditions, exhibiting Λ 744, min (N ≈ 100) = 0.42 ± 0.01 μm at the local fluence F ≈ 0.15 J/cm 2 (Fig.…”

Section: Surface Nanostructuringmentioning

confidence: 99%

Silicon as a virtual plasmonic material: Acquisition of its transient optical constants and the ultrafast surface plasmon-polariton excitation

Данилов

Ионин

Kudryashov

et al. 2015

J. Exp. Theor. Phys.

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Ultrafast intense photoexcitation of a silicon surface is complementarily studied experimentally and theoretically, with its prompt optical dielectric function obtained by means of time resolved optical reflection microscopy and the underlying electron-hole plasma dynamics modeled numerically, using a quantum kinetic approach. The corresponding transient surface plasmon-polariton (SPP) dispersion curves of the photo excited material were simulated as a function of the electron-hole plasma density, using the derived optical dielectric function model, and directly mapped at several laser photon energies, measuring spatial periods of the corresponding SPP mediated surface relief nanogratings. The unusual spectral dynam ics of the surface plasmon resonance, initially increasing with the increase in the electron-hole plasma den sity but damped at high interband absorption losses induced by the high density electron-hole plasma through instantaneous bandgap renormalization, was envisioned through the multi color mapping.

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Section: Surface Nanostructuringmentioning

confidence: 99%

Silicon as a virtual plasmonic material: Acquisition of its transient optical constants and the ultrafast surface plasmon-polariton excitation

Данилов

Ионин

Kudryashov

et al. 2015

J. Exp. Theor. Phys.

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“…A periodicity of about the wavelength λ of the laser radiation is commonly observed, which are usually called as ripples or laser-induced periodic surface structures (LIPSS). It should be noted that such LIPSS show water-repellent properties [12,[27][28][29], diffusive reflection [30][31][32][33][34], and friction change [35][36][37][38]. The spatial periodicity of low-spatial frequency LIPSS (LSFL) is known to be approximately laser wavelength dependent, and the LSFL is mainly orientated perpendicular to the direction of the laser polarization.…”

Section: Femtosecond Laser-induced Surface Structuresmentioning

confidence: 99%

Femtosecond Laser-Induced Surface Modification and its Application

Goya¹,

Shiraishi²,

Fuchiwaki³

et al. 2016

Applications of Laser Ablation - Thin Film Deposition, Nanomaterial Synthesis and Surface Modification

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In this chapter, we present femtosecond laser micromachining to fiber optics, focusing on surface qualities. Some techniques applied in the field are introduced to date and a review of some of the current applications for this type of technology. Section 2 describes laser-induced periodic surface structures (LIPSSs), which are induced in low-and highfluence regime. Section 3 describes the influences of laser-induced structures for the fabrication of fiber-optic sensors, with experimental techniques and results in our research group. These sections explore ultrashort laser pulses applications, roughly going from lower to higher energy (power, intensity) ones.

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“…On the contrary, under multipulse exposition N ӷ 10, forming ripples with amplitude modulation h of several hundred nanometers (h/λ ≤ 1), the experimen tally observed values of the periods of ripples lie in the range Λ = λ/(1.3-1.7) [2,3,5,15,16]. It is worth not ing that such significantly subwavelength values of the periods of ripples were observed even under conditions where the wavelength of SPP on a smooth surface was almost equal to the wavelength of the incident radia tion [5,15,16].…”

Section: Introductionmentioning

confidence: 99%

“…Femtosecond laser induced formation of ripples has successfully been used for color marking [1], antireflection [2,3] and local chemical modification [3,4] of surfaces, SERS [5], etc. However, it is worth noting that a comprehen sive theoretical model that enables one to predict the evolution of ripples on different materials under pre determined experimental conditions still has not been developed.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear evolution of aluminum surface relief under multiple femtosecond laser irradiation

et al. 2015

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The electromagnetic field interference distribution on the aluminum surface during formation of laser induced periodic surface structures (ripples) under femtosecond laser irradiation is studied. The nonlinear dependence of optical feedback on the geometric parameters of the ripples is shown to play a key role in non linear evolution of the relief with increasing number of pulses. The strongest optical feedback is observed for periods of ripples in the range of Λ = 0.65λ-0.75λ at relief modulation of h = 0.15λ-0.2λ, where λ is the laser wavelength. On the basis of the developed approach, we explain why the frequently observed femtosecond laser induced ripples have similar periods on materials with a high value of the imaginary part and strongly negative real part of permittivity.

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Direct femtosecond laser fabrication of antireflective layer on GaAs surface

Cited by 42 publications

References 20 publications

Silicon as a virtual plasmonic material: Acquisition of its transient optical constants and the ultrafast surface plasmon-polariton excitation

Silicon as a virtual plasmonic material: Acquisition of its transient optical constants and the ultrafast surface plasmon-polariton excitation

Femtosecond Laser-Induced Surface Modification and its Application

Nonlinear evolution of aluminum surface relief under multiple femtosecond laser irradiation

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