Fourfold rotationally symmetrically polarized laser beam for drilling a square hole

Fourfold rotationally symmetrically polarized laser beam for drilling a square hole

A method of laser processing with a space-variant polarized laser beam is discussed for drilling a square hole. Fourfold rotationally symmetrically polarized beams were proposed. The square-hole was formed by using the difference in the absorption of polarized light for oblique incidence. The feasib...

Full description

Saved in:
Bibliographic Details
Published in:Japanese Journal of Applied Physics Vol. 55; no. 4; pp. 42701 - 42707
Main Authors: Kikuchi, Hiroshi, Mizutani, Akio, Kikuta, Hisao
Format: Journal Article
Language:English
Published: The Japan Society of Applied Physics 01-04-2016
Subjects:
Absorption
Beams (radiation)
Circularity
Corners
Drilling
Laser beams
Laser processing
Mathematical analysis
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A method of laser processing with a space-variant polarized laser beam is discussed for drilling a square hole. Fourfold rotationally symmetrically polarized beams were proposed. The square-hole was formed by using the difference in the absorption of polarized light for oblique incidence. The feasibility of square hole drilling with the polarized beams was investigated by numerical simulations of laser processing. The calculated holes had square openings with sharp corners. Moreover, one of the square openings was about the same size as a circular hole drilled with a circularly polarized focused beam.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.55.042701