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Optics Express

Optics Express

  • Vol. 17, Iss. 7 — Mar. 30, 2009
  • pp: 5058–5068

Extraordinary laser-induced swelling of oxide glasses

Richard Grzybowski, Stephan Logunov, Alexander Streltsov, and James Sutherland  »View Author Affiliations

Optics Express, Vol. 17, Issue 7, pp. 5058-5068 (2009)

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We describe a novel process of laser-assisted fabrication of surface structures on doped oxide glasses with heights reaching 10 – 13% of the glass thickness. This effect manifests itself as a swelling of the irradiated portion of the glass, which occurs in a wide range of glass compositions. The extent of such swelling depends on the glass base composition. Doping with Fe, Ti, Co, Ce, and other transition metals allows for adjusting the absorption of the glass and maximizing the feature size. In the case of bumps grown on borosilicate glasses, we observe reversible glass swelling and the bump height can increase or decrease depending on whether the consecutive laser pulse has higher or lower energy compared with the previous one. The hypothetical mechanism includes laser heating of glass, glass melting, and directional flow. We review several potential applications of such glass swelling.

© 2009 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(220.4000) Optical design and fabrication : Microstructure fabrication
(350.3850) Other areas of optics : Materials processing

ToC Category:
Laser Micromachining

Original Manuscript: January 27, 2009
Revised Manuscript: March 12, 2009
Manuscript Accepted: March 12, 2009
Published: March 16, 2009

Richard Grzybowski, Stephan Logunov, Alexander Streltsov, and James Sutherland, "Extraordinary Laser-Induced Swelling of Oxide Glasses," Opt. Express 17, 5058-5068 (2009)

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