Femtosecond laser fabrication of sub-diffraction nanoripples on wet Al surface in multi-filamentation regime: High optical harmonics effects?

Ионин, А. А.; Kudryashov, S. I.; Makarov, Sergey; Rudenko, A. A.; Saltuganov, P. N.; Селезнев, Л. В.; Sinitsyn, D. V.; Sunchugasheva, E. S.

doi:10.1016/j.apsusc.2013.12.032

Cited by 26 publications

(20 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spatial period of the modulated electromagnetic field Λ SPP at the material interface originated from the interference of the incident laser light with the excited SPPs fields can be estimated from the real part of the SPP wave number 45 – 48 : …”

Section: Resultsmentioning

confidence: 99%

High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity

Gnilitskyi

Derrien

Lévy

et al. 2017

Sci Rep

283

179

View full text Add to dashboard Cite

Highly regular laser-induced periodic surface structures (HR-LIPSS) have been fabricated on surfaces of Mo, steel alloy and Ti at a record processing speed on large areas and with a record regularity in the obtained sub-wavelength structures. The physical mechanisms governing LIPSS regularity are identified and linked with the decay length (i.e. the mean free path) of the excited surface electromagnetic waves (SEWs). The dispersion of the LIPSS orientation angle well correlates with the SEWs decay length: the shorter this length, the more regular are the LIPSS. A material dependent criterion for obtaining HR-LIPSS is proposed for a large variety of metallic materials. It has been found that decreasing the spot size close to the SEW decay length is a key for covering several cm2 of material surface by HR-LIPSS in a few seconds. Theoretical predictions suggest that reducing the laser wavelength can provide the possibility of HR-LIPSS production on principally any metal. This new achievement in the unprecedented level of control over the laser-induced periodic structure formation makes this laser-writing technology to be flexible, robust and, hence, highly competitive for advanced industrial applications based on surface nanostructuring.

show abstract

Section: Resultsmentioning

confidence: 99%

High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity

Gnilitskyi

Derrien

Lévy

et al. 2017

Sci Rep

283

179

View full text Add to dashboard Cite

show abstract

“…The spatial period Λ of the electromagnetic field can be calculated from the complex-valued SPP wavenumber β [using Eq. ( 3)] via [17,33]…”

Section: Modeling the Plasmon Periodmentioning

confidence: 99%

Properties of surface plasmon polaritons on lossy materials: lifetimes, periods and excitation conditions

Derrien¹,

Krüger²

2016

J. Opt.

View full text Add to dashboard Cite

The possibility to excite Surface Plasmon Polaritons (SPPs) at the interface between two media depends on the optical properties of both media and geometrical aspects. Specific conditions allowing the coupling of light with a plasmon-active interface must be satisfied. Plasmonic effects are well described in noble metals where the imaginary part of the dielectric permittivity is often neglected ("perfect medium approximation"). However, some systems exist for which such approximation cannot be applied, hence requiring a refinement of the common SPP theory. In this context, several properties of SPPs such as excitation conditions, period of the electromagnetic field modulation and SPP lifetime then may strongly deviate from that of the perfect medium approximation. In this paper, calculations taking into account the imaginary part of the dielectric permittivities are presented. The model identifies analytical terms which should not be neglected in the mathematical description of SPPs on lossy materials. These calculations are applied to numerous material combinations resulting in a prediction of the corresponding SPP features. A list of plasmon-active interfaces is provided along with a quantification of the above mentioned SPP properties in the regime where the perfect medium approximation is not applicable.

show abstract

“…Laser exposure (the number of incident pulses per spot, N ) is known to influence LIPSS (both ripples and nanoripples 36 ) to much less extent, inducing about 30% reduction in their periods versus exposures, increasing to N ∼ 10 2 -10 329-31 . Other effects -angle of incidence/laser polarization 38 , intact dielectric [39][40][41] indicate some emerging possibilities in reduction of LIPSS periods, but should be explored in details yet. Meanwhile, nanoscale hydrodynamics instabilities of laser-induced surface melt were also considered and explored as an alternative to the diverse electromagnetic approaches 28,42,43 .…”

Section: Introductionmentioning

confidence: 99%

Ultrafast photoionization and excitation of surface-plasmon-polaritons on diamond surfaces

Apostolova

Obreshkov

Ионин

et al. 2018

Applied Surface Science

Self Cite

View full text Add to dashboard Cite

Ultrafast plasmonics of novel materials has emerged as a promising field of nanophotonics bringing new concepts for advanced optical applications. Ultrafast electronic photoexcitation of a diamond surface and subsequent surface plasmon-polaritons (SPPs) excitation are studied both theoretically and experimentally -for the first time. After photoexcitation on the rising edge of the pulse, transient surface metallization was found to occur for laser intensity near 18 TW/cm 2 due to enhancement of the impact ionization rate; in this regime, the dielectric constant of the photoexcited diamond becomes negative in the trailing edge of the pulse thereby increasing the efficacy with which surface roughness leads to inhomogeneous energy absorption at the SPP wave-vector. These transient SPP waves imprint permanent fine and coarse surface ripples oriented perpendicularly to the laser polarization. The theoretical modeling is supported by the experiments on the generation of laser-induced periodic surface structure on diamond surface with normally incident 515-nm, 200-fs laser pulses. Sub-wavelength (Λ ≈ 100 nm) and near wavelength (Λ ≈ 450 nm) surface ripples oriented perpendicularly to the laser polarization emerged within the ablative craters with the increased number of laser shots; the spatial periods of the surface ripples decreased moderately with the increasing exposure. The comparison between experimental data and theoretical predictions demonstrates the role of transient changes of the dielectric permittivity of diamond during the initial stage of periodic surface ripple formation upon irradiation with ultrashort laser pulses.

show abstract

Femtosecond laser fabrication of sub-diffraction nanoripples on wet Al surface in multi-filamentation regime: High optical harmonics effects?

Cited by 26 publications

References 19 publications

High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity

High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity

Properties of surface plasmon polaritons on lossy materials: lifetimes, periods and excitation conditions

Ultrafast photoionization and excitation of surface-plasmon-polaritons on diamond surfaces

Contact Info

Product

Resources

About