Applied Physics A

, Volume 96, Issue 4, pp 869–872

Glass modification by continuous-wave laser backside irradiation (CW-LBI)

  • Hirofumi Hidai
  • Masato Yoshioka
  • Kuniaki Hiromatsu
  • Hitoshi Tokura
Article

DOI: 10.1007/s00339-009-5324-x

Cite this article as:
Hidai, H., Yoshioka, M., Hiromatsu, K. et al. Appl. Phys. A (2009) 96: 869. doi:10.1007/s00339-009-5324-x

Abstract

We report on a permanent change in the physical properties inside glass that is rapidly heated and quenched with a continuous-wave (CW) laser beam. The absorption of the glass was enhanced by laser heating, and the heated spot moved by thermal radiation and conduction. To trigger the heating, an absorbent material was placed on the backside of a glass plate and irradiated through the glass. The laser beam can modify borosilicate glass with a high aspect ratio (∼100:1) at a rate of ∼130 mm/s. The modified zone consists of two concentric cylindrical zones and is crack-free.

PACS

42.62.-b 81.05.Kf 44.90.+c 

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Hirofumi Hidai
    • 1
  • Masato Yoshioka
    • 1
  • Kuniaki Hiromatsu
    • 1
    • 2
  • Hitoshi Tokura
    • 1
  1. 1.Department of Mechanical Sciences and EngineeringTokyo Institute of TechnologyTokyoJapan
  2. 2.Research Center, AGC Asahi Glass Co., Ltd.KanagawaJapan

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