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The absorptance of metal surfaces to Nd:YAG/Nd:YLF laser light
Luleå tekniska universitet.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Product and Production Development.ORCID iD: 0000-0002-3569-6795
2008 (English)In: Conference proceedings: / 3rd Pacific International Conference on Applications of Lasers and Optics, PICALO : April 16 - 18, 2008, Capital Hotel, Beijing, China / [ed] Minlin Zhong, Orlando, Fla.: Laser institute of America , 2008, p. 375-380Conference paper, Published paper (Refereed)
Abstract [en]

The absorptance of real metallic engineering surfaces used in Laser Material Processing depends strongly upon the particular surface conditions, including the degree of roughness and oxidation. In this paper the influence of surface topography on Nd:YAG/Nd:YLF laser absorptance has been studied, both experimentally and theoretically, on a set of randomly selected as-received metallic engineering surfaces. The surfaces were sputter-coated with a thin layer of gold to eliminate differences in surface chemistry and oxidation. The absorptance was measured using integrating sphere reflectometry and compared to calculations from 3D ray-tracing simulations of AFM-scanned images of the surfaces. The results have increased the understanding of how surface roughness influences the laser-workpiece coupling efficiency.

Place, publisher, year, edition, pages
Orlando, Fla.: Laser institute of America , 2008. p. 375-380
National Category
Manufacturing, Surface and Joining Technology
Research subject
Manufacturing Systems Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-34053Local ID: 827b4b10-c78c-11dd-941d-000ea68e967bISBN: 978-0-912035-89-5 (print)OAI: oai:DiVA.org:ltu-34053DiVA, id: diva2:1007302
Conference
Pacific international conference on applications of lasers and optics : 16/04/2008 - 18/04/2008
Note
Godkänd; 2008; 20081211 (petern)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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Powell, JohnKaplan, Alexander

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf