Nanostructuring of thin films by ns pulsed laser interference

We show that nanosecond pulsed laser interference can be used to structure surfaces on a nanoscale. With this method, we are able to create hollow structures on various thin films like Ta, Ni, Au, Cu, Co, and NiTi. We find that the structuring mechanism is related to the mechanical effect of thermal...

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Bibliographic Details
Published inApplied physics. A, Materials science & processing Vol. 101; no. 2; pp. 309 - 312
Main Authors Riedel, S., Schmotz, M., Leiderer, P., Boneberg, J.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.11.2010
Subjects
Characterization and Evaluation of Materials
Condensed Matter Physics
Intermetallics
Machines
Manufacturing
Melting
Nanocomposites
Nanomaterials
Nanostructure
Nanotechnology
Nickel titanides
Optical and Electronic Materials
Physics
Physics and Astronomy
Processes
Pulsed lasers
Shape memory alloys
Surfaces and Interfaces
Thin Films
Liquid Layer
Scanning Tunneling Microscopy Image
Scanning Tunneling Microscopy
Hollow Structure
Nanosecond Pulse Laser
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Summary:We show that nanosecond pulsed laser interference can be used to structure surfaces on a nanoscale. With this method, we are able to create hollow structures on various thin films like Ta, Ni, Au, Cu, Co, and NiTi. We find that the structuring mechanism is related to the mechanical effect of thermal expansion upon melting. To corroborate this model, we study materials with an abnormal behavior at the melting point like Si, Ge, or Bi, as they contract upon melting.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-010-5822-x