scholarly journals Key role of surface plasmon polaritons in generation of periodic surface structures following single-pulse laser irradiation of a gold step edge

Nanophotonics ◽  
2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Pavel N. Terekhin ◽  
Jens Oltmanns ◽  
Andreas Blumenstein ◽  
Dmitry S. Ivanov ◽  
Frederick Kleinwort ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Single Pulse ◽  
Step Edge ◽  
Surface Structures ◽  
Femtosecond Laser Irradiation ◽  
Processing Technologies ◽  
Periodic Surface ◽  
Plasmon Polaritons

Abstract Understanding the mechanisms and controlling the possibilities of surface nanostructuring is of crucial interest for both fundamental science and application perspectives. Here, we report a direct experimental observation of laser-induced periodic surface structures (LIPSS) formed near a predesigned gold step edge following single-pulse femtosecond laser irradiation. Simulation results based on a hybrid atomistic-continuum model fully support the experimental observations. We experimentally detect nanosized surface features with a periodicity of ∼300 nm and heights of a few tens of nanometers. We identify two key components of single-pulse LIPSS formation: excitation of surface plasmon polaritons and material reorganization. Our results lay a solid foundation toward simple and efficient usage of light for innovative material processing technologies.

scholarly journals Surface Plasmon Polaritons on Rough Metal Surfaces: Role in the Formation of Laser-Induced Periodic Surface Structures

ACS Omega ◽  
2019 ◽  
Vol 4 (4) ◽  
pp. 6939-6946 ◽  
Author(s):  
Yasser Fuentes-Edfuf ◽  
José A. Sánchez-Gil ◽  
Camilo Florian ◽  
Vincenzo Giannini ◽  
Javier Solis ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Metal Surfaces ◽  
Surface Structures ◽  
Periodic Surface ◽  
Plasmon Polaritons

Compact surface structures for the efficient excitation of surface plasmon-polaritons

2012 ◽  
Vol 249 (6) ◽  
pp. 1178-1187 ◽  
Author(s):  
S. de la Cruz ◽  
E. R. Méndez ◽  
D. Macías ◽  
R. Salas-Montiel ◽  
P. M. Adam
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Compact Surface ◽  
Surface Structures ◽  
Plasmon Polaritons

Ultrafast Laser Induced Subwavelength Periodic Surface Structures on Semiconductors/Metals and Application to SERS Studies

MRS Advances ◽  
2016 ◽  
Vol 1 (49) ◽  
pp. 3317-3327 ◽  
Author(s):  
V. Saikiran ◽  
Mudasir H Dar ◽  
R. Kuladeep ◽  
Narayana Rao Desai
Keyword(s):  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Gold Film ◽  
Low Frequency ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Structures ◽  
Femtosecond Laser Irradiation ◽  
Gold Films ◽  
Periodic Surface ◽  
Different Thickness

ABSTRACTIn this manuscript a simple approach is discussed to fabricate uniform periodic surface structures on semiconductor surfaces by femtosecond laser irradiation for surface-enhanced Raman spectroscopy (SERS) applications. Gold films having different thickness are first deposited on semiconductor silicon (Si) surfaces and then periodic surface structures are fabricated by femtosecond laser irradiation. The periodic structures are observed to be uniform over a large area with chain type structure formation of gold and Si. We have studied the formation of these surface structures on Si surface by having different thickness gold films deposited on Si substrates. This approach of the fabrication of surface structures with the assistance of gold film is found to help in local field enhancement and hence work as suitable substrate for the SERS experiments. The conditions for achieving high enhancement factor in SERS with different gold film thicknesses are explored in detail. We also present here the formation of low frequency ripples on Silicon (Si) and high frequency as well as low frequency ripples on titanium (Ti) surface in air and water environments by irradiation with fs laser pulses. Different morphologies were observed on Ti surface depending upon the laser irradiation parameters and the surrounding dielectric medium.

scholarly journals Fabricating Femtosecond Laser-Induced Periodic Surface Structures with Electrophysical Anisotropy on Amorphous Silicon

Nanomaterials ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 42
Author(s):  
Dmitrii Shuleiko ◽  
Mikhail Martyshov ◽  
Dmitrii Amasev ◽  
Denis Presnov ◽  
Stanislav Zabotnov ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Volume Fraction ◽  
Femtosecond Laser Pulses ◽  
Surface Structures ◽  
Femtosecond Laser Irradiation ◽  
Nanocrystalline Phase ◽  
Near Surface ◽  
Periodic Surface ◽  
Relief Formation

One-dimensional periodic surface structures were formed by femtosecond laser irradiation of amorphous hydrogenated silicon (a-Si:H) films. The a-Si:H laser processing conditions influence on the periodic relief formation as well as correlation of irradiated surfaces structural properties with their electrophysical properties were investigated. The surface structures with the period of 0.88 and 1.12 μm were fabricated at the laser wavelength of 1.25 μm and laser pulse number of 30 and 750, respectively. The orientation of the surface structure is defined by the laser polarization and depends on the concentration of nonequilibrium carriers excited by the femtosecond laser pulses in the near-surface region of the film, which affects a mode of the excited surface electromagnetic wave which is responsible for the periodic relief formation. Femtosecond laser irradiation increases the a-Si:H films conductivity by 3 to 4 orders of magnitude, up to 1.2 × 10−5 S∙cm, due to formation of Si nanocrystalline phase with the volume fraction from 17 to 28%. Dark conductivity and photoconductivity anisotropy, observed in the irradiated a-Si:H films is explained by a depolarizing effect inside periodic microscale relief, nonuniform crystalline Si phase distribution, as well as different carrier mobility and lifetime in plane of the studied samples along and perpendicular to the laser-induced periodic surface structures orientation, that was confirmed by the measured photoconductivity and absorption coefficient spectra.

scholarly journals Generalized Plasmonic Modelling of the Effect of Refractive Index on Laser-Induced Periodic Nanostructures

2019 ◽  
Vol 8 (2) ◽  
pp. 73-79
Author(s):  
A. Abdelmalek ◽  
Z. Bedrane ◽  
V. Bharadwaj ◽  
E.-H. Amara ◽  
R. Ramponi ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
High Spatial Frequency ◽  
Refraction Index ◽  
Dielectric Materials ◽  
Laser Wavelength ◽  
Surface Structures ◽  
Femtosecond Laser Irradiation ◽  
Periodic Nanostructures ◽  
Periodic Surface ◽  
Wide Range

Laser-induced periodic surface structures (LIPSS) have been studied theoretically employing generalized plasmonic modelling on several dielectric materials such as SiO2, Al2O3, ZnO, AlAs and diamond exposed to 800 nm wavelength multi-pulse femtosecond laser irradiation. The study of the optical properties of the materials during laser irradiation reveals a formation of a metallic like pseudo-material on the irradiated layer during excitation. A study of the grating periodicity of the nanostructures shows that the materials having a high refraction index allow LIPSS formation with a wide range of grating periodicities. Results also show High Spatial Frequency LIPSS formation with periodicities 3 to 8 times lower than the laser wavelength.

scholarly journals Surface Plasmon Polariton Triggered Generation of 1D-Low Spatial Frequency LIPSS on Fused Silica

2018 ◽  
Vol 8 (9) ◽  
pp. 1624 ◽  
Author(s):  
Simon Schwarz ◽  
Stefan Rung ◽  
Cemal Esen ◽  
Ralf Hellmann
Keyword(s):  
Spatial Frequency ◽  
Surface Plasmon ◽  
Dielectric Material ◽  
Periodic Structures ◽  
Scanning Speed ◽  
Fused Silica ◽  
Surface Structures ◽  
Femtosecond Laser Irradiation ◽  
Parameter Study ◽  
Periodic Surface

We report on the generation of low spatial frequency laser-induced periodic surface structures along straight lines on fused silica by spatially scanning the laser parallel to its polarization direction. The influence of the applied laser fluence and the scanning speed on the periodic surface structures is investigated. The parameter study shows that periodic structures appear in a limited parameter regime of combined fluence and scan speed with periodicities smaller than the laser wavelength. Most strikingly, we observe a perpendicular orientation of the self-assembled periodic structures to the electrical field of the laser, notably a previously unreported result for this dielectric material. This behavior is explained taking into account calculations of surface plasmon polaritons including a Drude model for free carrier excitation within silica by femtosecond laser irradiation.

Amplitude and phase of surface plasmon polaritons excited at a step edge

2016 ◽  
Vol 122 (4) ◽  
Author(s):  
A. Klick ◽  
S. de la Cruz ◽  
C. Lemke ◽  
M. Großmann ◽  
H. Beyer ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Step Edge ◽  
Plasmon Polaritons
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