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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 9 — Oct. 2, 2013

Moving force of metal particle migration induced by laser irradiation in borosilicate glass

Hirofumi Hidai, Makoto Matsushita, Souta Matsusaka, Akira Chiba, and Noboru Morita  »View Author Affiliations

Optics Express, Vol. 21, Issue 16, pp. 18955-18962 (2013)

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We optically manipulated a metal particle in borosilicate glass. The glass in the neighborhood of the laser-heated metal particle softened; hence, the metal particle was able to migrate in the glass. In this letter, the driving force of the metal particle toward the light source in the glass provided by laser illumination was investigated. The variation in the surface tension of the glass at the interface between the glass and the metal particle induced by the temperature gradient was calculated via a numerical temperature calculation. It was found that the temperature at the laser-illuminated surface of a stainless-steel particle with a radius of 40 μm was ~320 K higher than that on the nonilluminated side. The force applied to the metal particle from the surrounding glass was calculated to be ~100 μN, which was approximately equal to the viscous resistance force. In addition, the experimental and numerically calculated speeds of the moving particle, which was measured while varying the laser power, are discussed.

© 2013 OSA

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(350.3850) Other areas of optics : Materials processing
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Optical Trapping and Manipulation

Original Manuscript: June 19, 2013
Revised Manuscript: July 25, 2013
Manuscript Accepted: July 25, 2013
Published: August 1, 2013

Virtual Issues
Vol. 8, Iss. 9 Virtual Journal for Biomedical Optics

Hirofumi Hidai, Makoto Matsushita, Souta Matsusaka, Akira Chiba, and Noboru Morita, "Moving force of metal particle migration induced by laser irradiation in borosilicate glass," Opt. Express 21, 18955-18962 (2013)

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