Effect of ps-laser repetition rate on colour rendition, nanoparticle morphology and surface chemistry on silver [Invited]

Guay, Jean‐Michel; Walia, Jaspreet; Cote, G.; Poitras, Daniel; Variola, Fabio; Berini, Pierre; Weck, Arnaud

doi:10.1364/ome.9.000457

Cited by 7 publications

(2 citation statements)

References 51 publications

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“…At the high-information-content end of the spectrum for pigment/dye-based colors is the familiar laser/inkjet printing technique, where cost and resolution are relatively high, but it is less suited for large area coverage. This technology is analogous to electron-beam lithography (EBL) and direct laser printing of structural colors in that customizability and resolution of patterns are exceedingly high (with orders of magnitude higher print resolution), but are limited in throughput. ,− …”

Section: Translating Structural Color Technologies Into Consumer Prod...mentioning

confidence: 99%

Nanophotonic Structural Colors

et al. 2020

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Structural colors traditionally refer to colors arising from the interaction of light with structures with periodicities on the order of the wavelength. Recently, the definition has been broadened to include colors arising from individual resonators that can be subwavelength in dimension, e.g., plasmonic and dielectric nanoantennas. For instance, diverse metallic and dielectric nanostructure designs have been utilized to generate structural colors based on various physical phenomena, such as localized surface plasmon resonances (LSPRs), Mie resonances, thin-film Fabry-Pérot interference, and Rayleigh-Wood diffraction anomalies from 2D periodic lattices and photonic crystals. Here, we provide our perspective of the key application areas where structural colors really shine, and other areas where more work is needed. We review major classes of materials and structures employed to generate structural coloration and highlight the main physical resonances involved.

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Section: Translating Structural Color Technologies Into Consumer Prod...mentioning

confidence: 99%

Nanophotonic Structural Colors

et al. 2020

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“…By comparing the dimensions of Si nanocolumns for two repetition rates 10 Hz and 20 Hz and according to reference (Guay et al, 2019) with increasing laser repetition rate, the roughness of the surface is smooth out, so with laser repetition rate 20 Hz the average length of the formed Si nanocolumns was reached to 2 μm due to smooth of the surface in this case. Figure 7(a) shows Si nanoparticles were formed at laser repetition rate 20 Hz.…”

Section: Si Nanocolumns and Nanoparticles At Laser R R = 20 Hzmentioning

confidence: 88%

Laser-induced silicon nanocolumns by ablation technique

Ghaly

Mohsen

2020

Journal of Radiation Research and Applied Sciences

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High-purity silicon wafers were irradiated in ultrapure water environment by laser ablation (LA). Columnar structures were induced on the surface using multiple pulses from Nd:YAG laser. Nd: YAG pulsed laser irradiance with 1.3 × 10 9 W/cm 2 operated at 266 nm wavelength, 6 ns pulse duration, and 10 mJ pulse energy with different repetition rates 10 Hz and 20 Hz. Shape, structure, and size distribution of silicon nanocolumns were determined by scanning electron microscope and particle counting method. High populations of silicon nanoparticles were formed on the surfaces of the substrates after LA process. Elemental composition analysis was performed by energy dispersive x-ray spectrometer for the silicon targets and the deposited nanoparticles. Surface area of the silicon nanoparticles was measured by gas sorption process. UV-Visible spectrophotometer was used to detect the scattered light from the nanocolumns structure on the silicon target.

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