Melting and damage of aluminum surfaces by 80 ps KrF laser pulses

Tsui, Ying Y.; Santiago, J.; Li, Y.M.; Fedosejevs, R.

doi:10.1016/0030-4018(94)90477-4

Cited by 13 publications

(5 citation statements)

References 19 publications

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“…In this regime, those liquid nanoparticles that are frozen at the moment of their detachment form the surface nanoprotrusions of various shapes . This mechanism has been previously discussed for longer laser pulses . The second mechanism explains the formation of surface nanostructures by deformation of the spallation layer by cavitation bubbles.…”

Section: Various Controlled Nanostructuresmentioning

confidence: 81%

Direct femtosecond laser surface nano/microstructuring and its applications

Vorobyev

Chen

2012

Laser & Photonics Reviews

963

584

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This paper reviews a new field of direct femtosecond laser surface nano/microstructuring and its applications. Over the past few years, direct femtosecond laser surface processing has distinguished itself from other conventional laser ablation methods and become one of the best ways to create surface structures at nano‐ and micro‐scales on metals and semiconductors due to its flexibility, simplicity, and controllability in creating various types of nano/microstructures that are suitable for a wide range of applications. Significant advancements were made recently in applying this technique to altering optical properties of metals and semiconductors. As a result, highly absorptive metals and semiconductors were created, dubbed as the “black metals” and “black silicon”. Furthermore, various colors other than black have been created through structural coloring on metals. Direct femtosecond laser processing is also capable of producing novel materials with wetting properties ranging from superhydrophilic to superhydrophobic. In the extreme case, superwicking materials were created that can make liquids run vertically uphill against the gravity over an extended surface area. Though impressive scientific achievements have been made so far, direct femtosecond laser processing is still a young research field and many exciting findings are expected to emerge on its horizon.

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Section: Various Controlled Nanostructuresmentioning

confidence: 81%

Direct femtosecond laser surface nano/microstructuring and its applications

Vorobyev

Chen

2012

Laser & Photonics Reviews

963

584

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“…Laser damage of thin Al film sputtered on a Si wafer under exposure to 80 ps laser radiation in air has been studied in [21]. Formation of small bumps has been reported, but no systematic study of their morphology was performed.…”

Section: Introductionmentioning

confidence: 99%

Laser writing of nanostructures on bulk Al via its ablation in liquids

Stratakis¹,

Zorba²,

Barberoglou³

et al. 2009

Nanotechnology

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Experimental results are presented on the formation of self-organized nanostructures (NSs) on a bulk Al target under its ablation in liquids--water and ethanol--with short laser pulses from 180 femtoseconds (fs) through 350 picoseconds (ps). NSs are characterized by atomic force microscopy, field emission scanning electron microscopy, optical absorption spectroscopy and x-ray diffraction. The period of NSs does not depend on the laser wavelength used from 248 through 800 nm and is approximately 200 nm. NSs on Al show the characteristic absorption peak in the near UV which has been attributed to plasmon oscillation of electrons. The wings of this peak, extending to the visible, lead to a distinct yellow coloration of the processed Al surface. Ultrafast laser structuring of bulk aluminum in liquids may be potentially a promising technique for efficient production of nanosized aluminum.

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“…In this case, numerical simulation is needed to better understand and to optimize the ablation process. 12,13,14 So far, thermal models are commonly used to describe nanosecond (and longer) laser ablation. 15,16 In these models, the laser-irradiated material experiences heating, melting, boiling and evaporation.…”

Section: Introductionmentioning

confidence: 99%

Nanoparticles and nanostructures formed by laser: What can we learn from the modeling?

Itina

Bouflous

Hermann

et al. 2012

Photonics and Micro- And Nano-Structured Materials 2011

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The processes involved in nanoparticle and nanostructure formation by laser are analyzed. Relative contributions of several mechanisms involved are compared. First, we consider the formation of "primary" particles and discuss the difference between femtosecond and nanosecond regimes. Then, "secondary" particle/aggregate formation is discussed. In particular, attention is focused on (i) direct cluster ejection from a target under rapid laser interaction; (ii) condensation/evaporation; (iii) fragmentation/aggregation processes during cluster diffusion; (iv) diffusion, aggregation, and/or coalescence. In addition, routes of control over particle size distribution are proposed. Possibility of formation of colloidal nanoparticles with very narrow size distribution is proven numerically. The role of such parameters as ablation yield, laser wavelength and laser fluence, and surface tension are examined. Finally, controlled nanoparticle selfassembly is discussed as a potential technique for future development of nanomaterials.

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Melting and damage of aluminum surfaces by 80 ps KrF laser pulses

Cited by 13 publications

References 19 publications

Direct femtosecond laser surface nano/microstructuring and its applications

Direct femtosecond laser surface nano/microstructuring and its applications

Laser writing of nanostructures on bulk Al via its ablation in liquids

Nanoparticles and nanostructures formed by laser: What can we learn from the modeling?

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