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The absorptance of metal surfaces to Nd:YAG/Nd:YLF laser light
Luleå tekniska universitet.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Produkt- och produktionsutveckling.ORCID-id: 0000-0002-3569-6795
2008 (engelsk)Inngår i: 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, s. 375-380Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
Orlando, Fla.: Laser institute of America , 2008. s. 375-380
HSV kategori
Forskningsprogram
Produktionsutveckling
Identifikatorer
URN: urn:nbn:se:ltu:diva-34053Lokal ID: 827b4b10-c78c-11dd-941d-000ea68e967bISBN: 978-0-912035-89-5 (tryckt)OAI: oai:DiVA.org:ltu-34053DiVA, id: diva2:1007302
Konferanse
Pacific international conference on applications of lasers and optics : 16/04/2008 - 18/04/2008
Merknad
Godkänd; 2008; 20081211 (petern)Tilgjengelig fra: 2016-09-30 Laget: 2016-09-30 Sist oppdatert: 2017-11-25bibliografisk kontrollert

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Totalt: 94 treff
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  • de-DE
  • en-GB
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Utmatningsformat
  • html
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