Arrays of 3D micro-columns generated by laser ablation of Ta and steel: modelling of a black body emitter

Bensaoula, A.; Boney, C.; Pillai, R.; Шафеев, Г. А.; Simakin, A.V.; Starikov, D.

doi:10.1007/s00339-004-2588-z

Cited by 17 publications

(8 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Microstructuring of the flat silicon (Si) substrate surfaces by ultrafast lasers [38,43] under reactive gas (SF 6 ) atmosphere was chosen as the method of surface micro-and nanostructuring because it produces surface morphologies exhibiting two length scales [43] through a simple one-step process, without the need of a clean room facility and high-vacuum equipment requirements, and it can be applied to a wide variety of materials [44][45][46]. Silicon substrates have been used in view of potential applications that can be readily compatible with the existing semiconductor technology.…”

Section: Methodsmentioning

confidence: 99%

Biomimetic Artificial Surfaces Quantitatively Reproduce the Water Repellency of a Lotus Leaf

et al. 2008

View full text Add to dashboard Cite

The water repellency and self-cleaning properties of many plant surfaces have been qualitatively and sometimes quantitatively attributed to not only the chemical constituency of the cuticle covering their surface, which is composed by soluble lipids embedded in a polyester matrix, but, even more importantly, to the specially textured topography of the surface. [1][2][3] It is understood that the microstructrured rough surface enhances the effect of surface chemistry into superhydrophobicity, reduced particle adhesion and water repellency. Actually, in the cases of the most famous water repellent plant leaves like Nelumbo nucifera (the sacred Lotus) or Colocasia esculenta, a dual scale roughness has been observed on their surfaces created by papillose epidermal cells and an additional layer of epicuticular waxes. The roughness of the papillae leads to a reduced contact area between the surface and a liquid drop (or a particle) with droplets residing only on the tips of the epicuticular wax crystals on the top of the papillose epidermal cells. As a result, contaminating particles can be picked up by the liquid and carried away as the droplet rolls off the leaf; this was coined the ''Lotus Effect'' by Barthlott and Neinhuis, [1] who then organized a consortium trying to develop self-cleaning products.[4] Similar behavior has been observed on other biological surfaces like the wings of Cicada orni [5] or Rhinotermitidae [6] insects. A water repellent surface exhibits certain remarkable wetting characteristics originating from very high contact angles (in excess of 1508) and very small values of contact angle hysteresis (less than 58): [7] droplets roll down these surfaces at a speed faster than that of a solid sphere rolling under gravity, [8] they can fully bounce after impacting the surface [9,10] whereas the time of contact of an impacting droplet with the surface is independent of its velocity.[10]Water repellency was discovered very early when Boys noticed that water deposited on a lycopodium layer rolled itself up into perfect little balls.[11] However, it has attracted the interest of the scientific community over the last ten years following the observations of the microtextures of plant surfaces and the first development of super-water-repellent surfaces possessing a fractal microstructure; [12] the latter were created spontaneously when alkylketene dimmer was solidified from the melt. Water repellency as well as the development of super-hydrophobic surfaces are currently the focus of considerable research because of a range of potential applications, such as the development of self-cleaning surfaces, microfluidics, lab-on-chip devices, low friction coatings, water proof and anti-rain textiles, etc. [13][14][15] The actual strategy consists in mimicking superhydrophobic biosurfaces by designing rough substrates out of hydrophobic materials. [16,17] This has been implemented in a variety of bottom-up or bottom-down approaches [18] like deposition of functionalized particles [19][20][21][22]

show abstract

Section: Methodsmentioning

confidence: 99%

Biomimetic Artificial Surfaces Quantitatively Reproduce the Water Repellency of a Lotus Leaf

et al. 2008

View full text Add to dashboard Cite

show abstract

“…Visual examination, however, showed a dark-gray to black color. Apparently, the light falling on the roughened surface gets scattered and absorbed, resulting in the appearance of dark surfaces [16,17]. For this reason, optical microscopy of the surfaces was difficult.…”

Section: Characterization Of Mca-structured Surfacesmentioning

confidence: 99%

“…MCA is produced by laser ablation with an excimer laser having energy in the range of a few Joules, pulse duration of 0.002-1.5 ms, and wavelength in the range of 1.15-11.00 mm. Such adjustable characteristics of the laser allow variation of the material choice and MCA process parameters over a wide range [16,17]. An example of MCA formed on the surface of steel is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of adhesive joint strength by laser surface modification

Baburaj¹,

Starikov²,

Evans³

et al. 2007

International Journal of Adhesion and Adhesives

Self Cite

145

View full text Add to dashboard Cite

“…Photolithographic strategies such as gray‐scale photolithography, multiphoton lithography, and interference lithography fabricate high resolution 3D structures, but generally require light‐activated materials and sophisticated infrastructure 7–9. Direct layer‐by‐layer placement or removal of materials, for example, stereolithography, 3D printing, and laser ablation, typically exhibit low feature resolution, low throughput, or require specialized and expensive instrumentation 10–12. Here we present a strategy termed liquid lithography which, using no pattern‐alignment steps or dedicated equipment, can nevertheless rapidly and efficiently construct intricate 3D assemblies.…”

mentioning

confidence: 99%

Fabrication of 3D Microstructures from Interactions of Immiscible Liquids with a Structured Surface

2013

View full text Add to dashboard Cite

show abstract

Arrays of 3D micro-columns generated by laser ablation of Ta and steel: modelling of a black body emitter

Cited by 17 publications

References 15 publications

Biomimetic Artificial Surfaces Quantitatively Reproduce the Water Repellency of a Lotus Leaf

Biomimetic Artificial Surfaces Quantitatively Reproduce the Water Repellency of a Lotus Leaf

Enhancement of adhesive joint strength by laser surface modification

Fabrication of 3D Microstructures from Interactions of Immiscible Liquids with a Structured Surface

Contact Info

Product

Resources

About