Editorial: Special Issue “Laser-Generated Periodic Nanostructures”

Simon, Péter; Ihlemann, J.

doi:10.3390/nano11082054

Cited by 5 publications

(4 citation statements)

References 37 publications

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“…Additionally, the technique is fast and easy to operate. The FS laser material processing entails thermal ablation [12,21,22] of the target material using temporally shaped FS laser pulses [1,22,23]. The energy of the incident laser irradiation is absorbed in the material; thus, enabling the ablation process by the formation of plasma and its expansion into the material [21][22][23].…”

Section: Motivation For the Studymentioning

confidence: 99%

“…Moreover, they also involve multiple process steps and lengthy fabrication procedures. An emerging and alternate fabrication method is the usage of high-energy ultrafast laser pulses for material processing commonly known as a femtosecond (FS) laser [1,2,11,12]. Usage of the FS laser has already been proposed for various application areas including design of optical filters [1,2,12], refractive index sensing [13,14], fluid sensors [15], surgery [16], biomedical sensing [17], chemo-sensing [18], nanolithography [19], and nano-welding [20].…”

Section: Introduction 1backgroundmentioning

confidence: 99%

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Design and Analysis of Femtosecond Laser-Generated Metasurface for Optical Filter Application

et al. 2022

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This work investigates a Fano filter design based on a nano-hole array, patterned in fused silica using high-energy ultrafast femtosecond laser pulses. After carefully observing the experimental results, the structural profile of the nano-holes is numerically modeled in a 3D finite-difference time-domain-based software platform. The metasurface design consists of conical shaped air holes structured in the substrate, and a later deposited waveguide layer which leaves craters on the surface as the material fills inside the nano-holes. The spectral properties of the device are studied against variations in the structural parameters, such as the depth of the nano-holes, its surface diameter, and the depth of the craters on the surface of the waveguide. The proposed Fano filter device is designed to operate in the near-infrared (NIR) wavelength range around a telecommunication window of 1550 nm. Multiple narrowband resonances are observed with a linewidth in the range of 1.4 to 24.2 nm and a quality factor of 66.51 to 1090.12. The device shows good spectral tunability over a wide range from 1380 to 1650 nm comprising multiple narrowband resonances and variations in the structural parameters. Since the device can be implemented using a cost-effective and rapid fabrication method, it can be proposed for use in various optical filtering and sensing applications.

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Section: Motivation For the Studymentioning

confidence: 99%

Section: Introduction 1backgroundmentioning

confidence: 99%

Design and Analysis of Femtosecond Laser-Generated Metasurface for Optical Filter Application

et al. 2022

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“…The laser generation of periodic surface structures has developed into a broad field with many different techniques and a range of potential applications like microlasers, optical nanoswitches or storage devices, sensors or antifraud features [1]. Such structures can modify the tribological characteristics [2], wettability [3] or cell growth properties [4] of surfaces.…”

Section: Introductionmentioning

confidence: 99%

High-Resolution Laser Interference Ablation and Amorphization of Silicon

2023

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The laser interference patterning of a silicon surface via UV femtosecond pulse irradiation, resulting in 350 nm periodic structures, is demonstrated. The structuring process was performed using a laser with a 450 fs pulse duration at a wavelength of 248 nm in combination with a mask projection setup. Depending on the laser fluence, single-pulse irradiation leads to amorphization, structure formation via lateral melt flow or the formation of voids via peculiar melt coalescence. Through multipulse irradiation, combined patterns of interference structures and laser-induced periodic surface structures (LIPSS) are observed.

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“…Laser-induced periodic surface structures (LIPSS) spontaneously emerging from irradiation of solid-state materials with repetitive femtosecond laser pulses attract great scientific and technological interest and offer new perspectives for laser material processing [1][2][3][4][5][6][7][8] . These structures arise from permanent material modifications due to complex light-driven material reorganization, whose key features, such as topography, periodicity and orientation, are functions of material properties, irradiation geometry, laser wavelength, polarization state, peak fluence, and number of pulses.…”

Section: Introductionmentioning

confidence: 99%

Low spatial frequency laser-induced periodic surface structures in fused silica inscribed by widely tunable femtosecond laser pulses

Navickas

Grigutis

Jukna

et al. 2022

Preprint

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The formation and evolution of laser-induced periodic surface structures in fused silica under irradiation of widely tunable (in the1−3 μm range) linearly polarized femtosecond (200 fs) pulses was studied experimentally. The structures were inscribed inhigh fluence regime (exceeding the surface ablation threshold for a single pulse) and characterized by using scanning electronmicroscopy and two dimensional Fourier transform. The results revealed rapid (after irradiation with a few successive pulses)formation of periodic laser-induced periodic surface structures aligned parallel to laser polarization, whose period increases withincreasing the inscription wavelength, obeying the λ/n law. With further increase of number of pulses, the generated structuresgradually reorganize into laser polarization-independent low spatial frequency annular structures associated with formation ofthe damage crater, which fully established after irradiation with a few tens of successive laser pulses. This particular evolutionscenario was observed over the entire wavelength tuning range of incident pulses.

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Editorial: Special Issue “Laser-Generated Periodic Nanostructures”

Abstract: The study of laser-fabricated periodic nanostructures is one of the leading topics of today’s photonics research [...]

Cited by 5 publications

References 37 publications

Design and Analysis of Femtosecond Laser-Generated Metasurface for Optical Filter Application

Design and Analysis of Femtosecond Laser-Generated Metasurface for Optical Filter Application

High-Resolution Laser Interference Ablation and Amorphization of Silicon

Low spatial frequency laser-induced periodic surface structures in fused silica inscribed by widely tunable femtosecond laser pulses

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