In-bulk and surface structuring of sapphire by femtosecond pulses


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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/28046

Title:	In-bulk and surface structuring of sapphire by femtosecond pulses
Authors:	Juodkazis, Saulius Browse this author
	Nishimura, Koichi Browse this author
	Misawa, Hiroaki Browse this author →KAKEN DB
Keywords:	Dielectric breakdown
	Femtosecond laser micofabrication
	Micro-explosion
	Sapphire
Issue Date:	30-May-2007
Publisher:	Elsevier
Journal Title:	Applied Surface Science
Volume:	253
Issue:	15
Start Page:	6539
End Page:	6544
Publisher DOI:	10.1016/j.apsusc.2007.01.097
Abstract:	The actual space–time dependent intensity distribution of a tightly focused (numerical aperture NA = 1.35) Gaussian femtosecond pulse is modeled inside dielectric material. Such focusing is typically used for recording with sub-wavelength resolution inside dielectrics. The multi-pulse structuring inside the bulk and on the surface of sapphire are demonstrated. Formation of nano-cracks and nano-crystals is revealed inside the crystalline sapphire. Ripple formation on the surface is discussed in terms of the efficacy map calculated by theory given in ref. [J.E. Sipe, J.F. Young, J.S. Preston, H.M. van Driel, Laser-induced periodic surface structure. I. Theory, Phys. Rev. B 27 (2) (1983) 1141–1154.].
Relation:	http://www.sciencedirect.com/science/journal/01694332
Type:	article (author version)
URI:	http://hdl.handle.net/2115/28046
Appears in Collections:	電子科学研究所 (Research Institute for Electronic Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: Juodkazis Saulius（ヨードカジスサウルース）

OAI-PMH ( junii2 , jpcoar_1.0 )

- Hokkaido University