Angle-independent colorization of copper surfaces by simultaneous generation of picosecond-laser-induced nanostructures and redeposited nanoparticles

Fan, Peixun; Zhong, Minlin; Li, Lin; Schmitz, Patrick; Lin, Cheng Chieh; Long, Jiangyou; Zhang, Hongjun

doi:10.1063/1.4869456

Cited by 35 publications

(29 citation statements)

References 21 publications

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“…Fan et al 2021. used single laser pulses to demonstrate colours on copper, where each colour was associated with a single set of laser parameters.…”

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confidence: 99%

Laser-induced plasmonic colours on metals

et al. 2017

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Plasmonic resonances in metallic nanoparticles have been used since antiquity to colour glasses. The use of metal nanostructures for surface colourization has attracted considerable interest following recent developments in plasmonics. However, current top-down colourization methods are not ideally suited to large-scale industrial applications. Here we use a bottom-up approach where picosecond laser pulses can produce a full palette of non-iridescent colours on silver, gold, copper and aluminium. We demonstrate the process on silver coins weighing up to 5 kg and bearing large topographic variations (∼1.5 cm). We find that colours are related to a single parameter, the total accumulated fluence, making the process suitable for high-throughput industrial applications. Statistical image analyses of laser-irradiated surfaces reveal various nanoparticle size distributions. Large-scale finite-difference time-domain computations based on these nanoparticle distributions reproduce trends seen in reflectance measurements, and demonstrate the key role of plasmonic resonances in colour formation.

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“…Fan et al 2021. used single laser pulses to demonstrate colours on copper, where each colour was associated with a single set of laser parameters.…”

mentioning

confidence: 99%

Laser-induced plasmonic colours on metals

et al. 2017

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“…Metallic nanoparticles (NPs) exhibit unique plasmonic responses when exposed to optical radiation, leading to promising applications in many fields, such as material processing, solar cells, medicine, and plasmon‐assisted photochemistry . It was shown that the surface plasmon (SP) resonance of nanoparticles is influenced by factors such as particle size, shape, and permittivity .…”

Section: Introductionmentioning

confidence: 99%

Topography Tuning for Plasmonic Color Enhancement via Picosecond Laser Bursts

Guay

Lesina

Baxter

et al. 2018

Advanced Optical Materials

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The tuning of 3D topographical features on silver for the production of plasmonic colors is reported. The topography is produced by applying closely time‐spaced laser bursts. Using laser bursts increases the Chroma of the colors produced by up to 100% compared to the nonburst coloring method. By adjusting the energy distribution of the laser pulses in a burst, while maintaining the total burst energy constant, significantly different color palettes and topographical structures are produced. Scanning electron microscope analysis of the surfaces produced reveals the creation of three distinct sets of laser‐induced periodic‐like surface structures (LIPSS): low spatial frequency LIPSS (LSFL), high spatial frequency LIPSS (HSFL), and large LIPSS that have a period about 7× that of the laser wavelength. Two‐temperature model simulations of silver irradiated by a laser burst show a significant increase in the electron–phonon coupling which is mainly responsible for the creation of LIPSS. Finite‐difference time‐domain simulations of a model of the surface, consisting of nanoparticles arranged on a sinusoidal‐modulated surface of varying amplitude (0 to 150 nm) and period (200 and 1000 nm), elucidate the importance of the HSFL and LSFL structures for color formation, including the increase in Chroma (saturation) observed experimentally.

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“…There is particular interest in creating patterns or structures on a surface at the micro-and nano-scale with potential applications in optics, [1][2][3] photonics, 4,5 chemical catalysis, 6,7 optical biosensing, 8,9 materials surface processing, 5,[10][11][12] and so forth. For such a reason, further developments in surface nanostructure generation are of importance for both nanoscience and nanotechnology.…”

Section: Introductionmentioning

confidence: 99%

“…Laser-based methods have been largely exploited in the synthesis of nanostructures, and laser ablation with femtosecond (fs) pulses has been demonstrated as a valuable tool for both fabrication of nanostructured films by deposition of the ablation plume [13][14][15] and direct surface micro-and nano-structuring of solid targets. [1][2][3]5,10 Many of the studies on fs direct laser structuring exploit laser ablation induced by a beam with a Gaussian intensity spatial profile. By varying the characteristics of the laser pulse parameters, fabrication of a large variety of surface structures on metals and semiconductors is achieved, going from controlled randomly distributed nanostructures (cavities, wires, protrusion, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…The formation of nanostructures on copper with Gaussian beams has been largely investigated. 1,16,32,33 Recent remarkable examples of copper nanostructures applications include catalytic activity tuning by visible light irradiation, 34 and development of novel hybrid antibacterial materials. 35 However, we have not found any research work on laser nanostructuring of copper for the case of irradiation with fs optical vortex beams.…”

Section: Introductionmentioning

confidence: 99%

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Direct femtosecond laser ablation of copper with an optical vortex beam

Anoop

Fittipaldi

Rubano

et al. 2014

Journal of Applied Physics

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Laser surface structuring of copper is induced by laser ablation with a femtosecond optical vortex beam generated via spin-to-orbital conversion of the angular momentum of light by using a q-plate. The variation of the produced surface structures is studied as a function of the number of pulses, N, and laser fluence, F. After the first laser pulse (N¼1), the irradiated surface presents an annular region characterized by a corrugated morphology made by a rather complex network of nanometer-scale ridges, wrinkles, pores, and cavities. Increasing the number of pulses (21000) and a deep crater is formed. The nanostructure variation with the laser fluence, F, also evidences an interesting dependence, with a coarsening of the structure morphology as F increases. Our experimental findings demonstrate that direct femtosecond laser ablation with optical vortex beams produces interesting patterns not achievable by the more standard beams with a Gaussian intensity profile. They also suggest that appropriate tuning of the experimental conditions (F, N) can allow generating micro- and/or nano-structured surface for any specific application

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Angle-independent colorization of copper surfaces by simultaneous generation of picosecond-laser-induced nanostructures and redeposited nanoparticles

Cited by 35 publications

References 21 publications

Laser-induced plasmonic colours on metals

Laser-induced plasmonic colours on metals

Topography Tuning for Plasmonic Color Enhancement via Picosecond Laser Bursts

Direct femtosecond laser ablation of copper with an optical vortex beam

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