0

Full Content is available to subscribers

Subscribe/Learn More  >

Effects of Laser Fluence on Surface Nanostructuring With a Laser-Assisted Scanning Tunneling Microscope

[+] Author Affiliations
Xuhui Feng, Xinwei Wang

University of Nebraska at Lincoln, Lincoln, NE

Paper No. MNC2007-21425, pp. 1461-1470; 10 pages
doi:10.1115/MNC2007-21425
From:
  • 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems
  • First International Conference on Integration and Commercialization of Micro and Nanosystems, Parts A and B
  • Sanya, Hainan, China, January 10–13, 2007
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4265-7 | eISBN: 0-7918-3794-7
  • Copyright © 2007 by ASME

abstract

In this work, molecular dynamics simulation is performed to explore the long-time (up to 5 ns) behavior of argon crystal in surface nanostructuring with a laser-assisted scanning tunneling microscope. The surface nanostructuring region is limited to tens of nanometers in diameter although the simulated systems are much larger (more than 300,000 of atoms inside). This study is focused on the long-time solidification and crystallization procedure, which is driven by the heat conduction in the material. The effect of the computational domain on the final nanostructuring result is studied in detail. Different laser fluences are used in the simulation to explore how and to what extent the energy input affects the dimension and profile of the surface nanostructure. Meanwhile, spot-like structural defects in the sub-surface region are investigated during the solidification. Additionally, the evolutions of surface melting depth and lowest position in the whole process reveal the impact of different laser fluence on surface nanostructuring from another aspect.

Copyright © 2007 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In