Laser trapping of deformable objects

Murazawa, Naoki; Juodkazis, Saulius; Misawa, Hiroaki et al.

Optics Express, 2007, 15(20), 13310-13317

Permalink : https://hdl.handle.net/2115/30227

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アクセス権	open access
URI	https://hdl.handle.net/2115/30227
タイトル	Laser trapping of deformable objects
著者	Murazawa, Naoki ; Juodkazis, Saulius ; Misawa, Hiroaki ; Wakatsuki, Hiroshi
著者名 Murazawa, Naoki
著者名 Juodkazis, Saulius
e-Rad_Researcher 30253230 著者名 Misawa, Hiroaki
著者名 Wakatsuki, Hiroshi
言語	英語
発行日	2007-10-01
出版者	Optical Society of America
収録物名	Optics Express
巻(号)	15(20)
ページ	13310-13317
抄録	We report the trapping and manipulation of bubbles in viscous glass melts through the use of a laser. This phenomenon is observed in bubbles tens of micrometers in diameter under illumination by low numerical aperture (NA = 0.55). Once the bubble was centered on the optical axis, it was trapped and followed a lateral relocation of the laser beam. This phenomenon is explained by modifications of the bubble’s shape induced by axial heating and a decrease in surface tension. It is shown that formation of a concave dimple on the bubble’s front surface explains the observed laser trapping and manipulation. This mechanism of laser trapping is expected to take place in other deformable materials and can also be used to remove bubbles from melts or liquids. For this technique to be effective, the alteration of the bubble’s shape should be faster than its expulsion out of the laser’s point of focus.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	© 2007 Optical Society of America
PISSN	1094-4087