Plasmon-polariton surface modes and nanostructuring of semiconductors by femtosecond laser pulses

Makin, V. S.; Pestov, Yu. I.; Makin, R. S.; Vorob'ev, A. Ya.

doi:10.1364/jot.76.000555

Cited by 21 publications

(8 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ti nanostructures fabricated for h \ ~ 18 m.l cm -2 and the number of shots per spot IVj « 7 x 1 0 2 demonstrate a set of well-defined quasi-periodical sub-micron trenches (the average period A nano ~ 500 nm) with their wavevectors K (\K\ = 1 /A ) collinear to the polarization e and scanning velocity v (figure 1). The orientation of the trenches (K || e) is consistent with the standard 'interference' model of their fabrication via constructive interference between the incident fs-laser and excited SPP wave [10][11][12][13]. The trenches, rather than nearly harmonic ripples with the same period, appear because of the moderate laser fluence F1 ~ 18 mJ cm -2 , which is equal to the nanostructuring threshold, f n;ino «a 18 mJ cm -2 [16].…”

Section: Resultssupporting

confidence: 70%

“…According to their pronounced longitudinal polarization (K || e), the above-mentioned surface stripes with the modified material surface with or without trenches appear near to maxima of the 'laser-SPP' interference pattern on the surface, described by the formula for the spatially modulated total fluence F% [13] the experimentally observed surface stripes with or without axial trenches represent the surface modification regions close to the interference maxima (figure 2 ), while the axial trenches appear when the peak values > f ahi «a 0.3 J cm -2 [24]. The last inequality is satisfied for Fi « 18 mJ cm -2 when, according to equation 1, Fspp approaches ~5 J cm -2 with the surface electromagnetic (SPP) field concentrated thus by ~1 0 2 times because of the diffractive and interference redistribution of the incident plane laser wave into the propagating SPP wave localized within the extremely narrow (compared to the laser spot) near-interface skin layer [12].…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Sub-100 nanometer transverse gratings written by femtosecond laser pulses on a titanium surface

Ионин¹,

Kudryashov²,

Makarov³

et al. 2013

Laser Phys. Lett.

View full text Add to dashboard Cite

One-dimensional transverse (perpendicular to the laser polarization) gratings with periods A «a 50-60 nm were observed on a titanium surface within 150 nm wide, micrometer-long regular surface modification longitudinal stripes fabricated by multiple 744 nm Ti: sapphire femtosecond laser shots, occurring at a repetition rate of 10 Hz. In the center of the surface laser spot these stripes are oriented strictly perpendicular to the laser polarization, in accordance with the plasmon-polaritonic model, and appear as ablative longitudinal trenches centered along the main stripe axes, which are precursors of longitudinal common ripples with a 500 nm period. At the low-fluence periphery of the laser spot, the stripes appear not as ablative longitudinal trenches, but as linear arrays of sub-ablative transverse nanoripples with periods down to 50 nm. The appearance of such superfine transverse nanoripples is related to incomplete spallation of the laser-m olten surface layer, periodically modulated at the nanoscale through coherent sub-surface cavitation.

show abstract

Section: Resultssupporting

confidence: 70%

Section: Resultsmentioning

confidence: 99%

Sub-100 nanometer transverse gratings written by femtosecond laser pulses on a titanium surface

Ионин¹,

Kudryashov²,

Makarov³

et al. 2013

Laser Phys. Lett.

View full text Add to dashboard Cite

show abstract

“…A specific feature of an ultrashort pulse interaction with a matter is its ability to change the dielectric properties of the material due to the response of the electronic subsystem, whereas other processes (in particular, associated with the transfer of energy to the lattice) start after the end of the light pulse. Although initially amorphous GST225 is a semiconductor, [ 28 ] when exposed to ultrashort pulses, an increase in the density of free carriers is possible, which at a certain threshold value will lead to “metallization” [ 29–33 ] of the GST surface. In this case, the real part of the dielectric permittivity ε changes its sign to negative and favorable conditions appear for the formation of surface waves.…”

Section: Discussionmentioning

confidence: 99%

Specific Features of Formation of Laser‐Induced Periodic Surface Structures on Ge₂Sb₂Te₅ Amorphous Thin Films under Illumination by Femtosecond Laser Pulses

Kozyukhin

Smayev

Сигаев

et al. 2020

Physica Status Solidi (b)

View full text Add to dashboard Cite

This article presents the results of irradiation treatment by the 180 fs laser pulses at the wavelength of 1030 nm of Ge2Sb2Te5 amorphous thin films. It is shown that high‐quality laser‐induced periodic surface structures (LIPSS) are formed at certain parameters of irradiation with a period corresponding to the laser wavelength. A distinctive feature of the observed LIPSS is the alternation of amorphous and crystalline regions corresponding to the ridges and valleys of the periodic structures which are perpendicular to the polarization of the femtosecond light beam. These surface crystalline–amorphous alternating structures are characterized by significantly less pronounced surface relief than for previously observed LIPSS formed by femtosecond laser pulses at the wavelength of 515 nm. Possible mechanisms are considered for the LIPSS formation including the formation of surface plasmon polariton and its subsequent interference with the incident beam resulting in spatial modulation of the temperature on the film surface. As the results indicate, the formation of alternating structure has a threshold nature with the threshold laser fluence for LIPSS formation depending logarithmically on the number of laser pulses, which is attributed to the transient nature of the crystallization process.

show abstract

“…In the interaction of polarized femtosecond laser radiation the formation of nanostructures with anomalous orientation gE t (normal incidence) was observed for condensed matter with physically different properties: metals, semiconductors, dielectrics by Makin (2009). The period d of such structures was small in comparison with wavelength of incident radiation, usually d<<.…”

Section: Anomalous Grating Orientationmentioning

confidence: 99%

Universal Polariton Model of Laser-induced Condensed Matter Damage

Makin¹

2014

Proceedings of 2nd International Conference on Photonics, Optics and Laser Technology

View full text Add to dashboard Cite

The extension of known polariton model of laser-induced condensed matter damage followed by ordered structures formation for the case of ultrashort pulse durations and condensed matter of different physical properties was made. In addition to the usual cases of linear or circular polarizations of laser radiation the case of axi-symmetric polarization was theoretically considered and illustrated by experiments with dielectrics, semiconductors and metals. The special case of radially polarized laser radiation is distinguished as one for which laser-produced dynamic resonant the additional energy of excited surface polaritons into diffraction size focal spot. The advantages of axi-symmetrically polarized laser radiation for materials treatment in framework of universal polariton model were discussed. In experiments the wide variety of spatial periods of microstructures were observed which do not described by existing theories. The nonlinear mathematical model which describes the spatial periods of laser-produced microstructures was suggested. Model describes the formation of microstructures with periods multiplied by laser wavelength and predicts the spatial period's values less than diffraction limit one. The nonlinear theoretical model is illustrated by published experimental data. The idea to explain the cause of the formation of regular nanostructures with anomalous orientation on condensed matter surfaces was suggested. It is based on the effect of wedge (channel) surface plasmon polaritons excitation and their mutual interference under the action of polarized laser radiation. The new phenomenon of laser-induced anisotropy of metal recrystallization under the action of nanosecond duration repetitive pulses of linear polarized radiation was experimentally discovered. The phenomenon was explained as a result of grain-boundary movement by directed flux of skin-layer electrons dragged by surface plasmon polaritons.

show abstract

Plasmon-polariton surface modes and nanostructuring of semiconductors by femtosecond laser pulses

Cited by 21 publications

References 19 publications

Sub-100 nanometer transverse gratings written by femtosecond laser pulses on a titanium surface

Sub-100 nanometer transverse gratings written by femtosecond laser pulses on a titanium surface

Specific Features of Formation of Laser‐Induced Periodic Surface Structures on Ge₂Sb₂Te₅ Amorphous Thin Films under Illumination by Femtosecond Laser Pulses

Universal Polariton Model of Laser-induced Condensed Matter Damage

Contact Info

Product

Resources

About

Plasmon-polariton surface modes and nanostructuring of semiconductors by femtosecond laser pulses

Cited by 21 publications

References 19 publications

Sub-100 nanometer transverse gratings written by femtosecond laser pulses on a titanium surface

Sub-100 nanometer transverse gratings written by femtosecond laser pulses on a titanium surface

Specific Features of Formation of Laser‐Induced Periodic Surface Structures on Ge2Sb2Te5 Amorphous Thin Films under Illumination by Femtosecond Laser Pulses

Universal Polariton Model of Laser-induced Condensed Matter Damage

Contact Info

Product

Resources

About

Specific Features of Formation of Laser‐Induced Periodic Surface Structures on Ge₂Sb₂Te₅ Amorphous Thin Films under Illumination by Femtosecond Laser Pulses