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

Schwarz, Simon; Rung, Stefan; Esen, Cemal; Hellmann, Ralf

doi:10.3390/app8091624

Cited by 13 publications

(6 citation statements)

References 45 publications

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“…Self-organized structures called laser-induced periodic surface structures (LIPSS) have recently been discovered; the periods of such structures can be maintained constant and on the sub micro scale [8], and thus these structures could afford a new strategy for easy and cost-effective grating fabrication. In addition, LIPSS could be fabricated on virtually all materials, including metals [9], semiconductors [10], and dielectrics [11], which considerably expands the application range of gratings. Several parameters limit application of LIPSS, including uniformity, orientation, periodicity, and large-area consistency.…”

Section: Manipulation Of Lipss Orientation On Silicon Surfaces Using mentioning

confidence: 99%

Manipulation of LIPSS orientation on silicon surfaces using orthogonally polarized femtosecond laser double-pulse trains

Liu¹,

Jiang²,

Han³

et al. 2019

Opt. Express

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Laser-induced periodic surface structures (LIPSS) provide an easy and costeffective means of fabricating gratings and have been widely studied in recent decades. To overcome the challenge of orientation controllability, we developed a feasible and efficient method for manipulating the orientation of LIPSS in real time. Specifically, we used orthogonally polarized and equal-energy femtosecond laser (50 fs, 800 nm) double-pulse trains with time delay about 1ps, total peak laser fluence about 1.0 J/cm 2 , laser repetition frequency at 100 Hz and scanning speed at 150 μm/s to manipulate the LIPSS orientation on silicon surfaces perpendicular to the scanning direction, regardless of the scanning paths. The underlying mechanism is attributed to the periodic energy deposition along the direction of surface plasmon polaritons (SPPs), which can be controlled oriented along the scanning direction in orthogonally polarized femtosecond laser double-pulse trains surface scan processing. An application of structural colors presents the functionality of our method.

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Section: Manipulation Of Lipss Orientation On Silicon Surfaces Using mentioning

confidence: 99%

Manipulation of LIPSS orientation on silicon surfaces using orthogonally polarized femtosecond laser double-pulse trains

Liu¹,

Jiang²,

Han³

et al. 2019

Opt. Express

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show abstract

“…Copyright (2018), AIP Publishing LLC. Reproduced from [12] ) of SWPSS ever achieved by fs and ns laser ablation, respectively. It was reported that a higher substrate temperature facilitates the formation of SWPSS and can trigger the evolution of LSFLs into SWPSS on silica when the substrate temperature exceeds 850 • C [11], which may explain the increase in the SWPSS period.…”

Section: Swpss On Snmentioning

confidence: 99%

“…Table 1 displays the reported scanning electron microscope (SEM) morphologies of SWPSS and summarizes the preparation conditions and the SWPSS periods. SWPSS is merely achievable on silica dielectrics [9][10][11][12] and silicon [13,14] by fs laser ablation in air (FLAA). Although SWPSS with periods in the range of 3-6.5 µm has been produced on chromium (Cr) and gold (Au) films using nanosecond lasers [15][16][17], no report has developed SWPSS on a metal target via fs laser ablation.…”

Section: Introductionmentioning

confidence: 99%

Irregular LIPSS produced on metals by single linearly polarized femtosecond laser

Zhang

Liu

2021

Int. J. Extrem. Manuf.

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Currently, supra-wavelength periodic surface structures (SWPSS) are only achievable on silica dielectrics and silicon by femtosecond (fs) laser ablation, while triangular and rhombic laser induced periodic surface structures (LIPSS) are achievable by circularly polarized or linear cross-polarized femtosecond laser. This is the first work to demonstrate the possibility of generating SWPSS on Sn and triangular and rhombic LIPSS on W, Mo, Ta, and Nb using a single linearly polarized femtosecond laser. We discovered, for the first time, SWPSS patches with each possessing its own orientation, which are completely independent of the light polarization direction, thus, breaking the traditional rules. Increasing the laser power enlarges SWPSS periods from 4–6 μm to 15–25 μm. We report a maximal period of 25 μm, which is the largest period ever reported for SWPSS, ∼10 and ∼4 times the maximal periods (2.4 μm/6.5 μm) of SWPSS ever achieved by fs and ns laser ablation, respectively. The formation of triangular and rhombic LIPSS does not depend on the laser (power) or processing (scan interval and scan methodology) parameters but strongly depends on the material composition and is unachievable on other metals, such as Sn, Al, Ti, Zn, and Zr. This paper proposes and discusses possible mechanisms for molten droplet generation/spread/solidification, Marangoni convection flow for SWPSS formation, and linear-to-circular polarization transition for triangular and rhombic LIPSS formation. Reflectance and iridescence of as-prepared SWPSS and LIPSS are characterized. It was found that besides insufficient ablation on W, the iridescence density of Ta-, Mo-, Nb-LIPSS follows the sequence of melting temperatures: Ta > Mo > Nb, which indicates that the melting temperature of metals may affect the regularity of LIPSS. This work may inspire significant interest in further enriching the diversity of LIPSS and SWPSS.

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“…This idea was transferred into a mathematical model by Sipe et al [ 30 ], being the almost widely accepted theory. Moreover, the surface scattered wave was later linked to surface plasmon polaritons [ 24 , 31 ]. The reasons and a fundamental theory for the creation of HSFL, however, are still under discussion [ 32 , 33 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Periodic Non-Uniformities of Well-Structured Sapphire Surface by LIPSS on the Alignment of Nematic Liquid Crystal

et al. 2022

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In this study, we report on the alignment properties of nematic liquid crystals on various transparent structured sapphire layers formed by laser-induced periodic surface structures (LIPSS). One-dimensional LIPSS (1D-LFSL) are generated by infrared femtosecond laser pulses along parallel lines covering an area of 5 × 5 mm2, with a line spacing that is varied between 7 and 17 µm. These periodic structures, employed as alignment layers, have a spatial periodicity of about 980 nm, a modulation depth of about 100 nm, and exhibit a high quality due to being characterized by a high degree of homogeneity and parallelism of the structured features. It is found that such alignment layers of the sapphire surface lead to a decreasing azimuthal anchoring energy, when the width of the unstructured gap is increased. Modifying the sapphire surface by an ITO-coating with further deposition of a polyimide film increases the azimuthal anchoring energy by a factor of about four up to Wφ ~ 4.25 × 10−6 J/m2, when the minimum width of the unstructured gap is 7 µm. Comprehensive measurements and comparisons of the azimuthal anchoring energy as well as the pretilt angle for the 1D-LFSL, unstructured gaps, and entire areas depending on the width of unstructured gaps are presented and discussed.

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

Cited by 13 publications

References 45 publications

Manipulation of LIPSS orientation on silicon surfaces using orthogonally polarized femtosecond laser double-pulse trains

Manipulation of LIPSS orientation on silicon surfaces using orthogonally polarized femtosecond laser double-pulse trains

Irregular LIPSS produced on metals by single linearly polarized femtosecond laser

Influence of Periodic Non-Uniformities of Well-Structured Sapphire Surface by LIPSS on the Alignment of Nematic Liquid Crystal

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