Creation of locally selective mirror surface on 40BaO-40TiO 2 -20B 2 O 3 glass by XeCl pulse laser irradiation

Hirokazu Masai, Shintaro Mizuno, Takumi Fujiwara, Yasuhiko Benino, Takayuki Komatsu, Hiroshi Mori

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Creation of mirror dots, localized areas of smooth surface with a shape of laser beam on a glass material, using a XeCl laser irradiation is reported. Laser irradiation of a 40BaO-40TiO 2 -20B 2 O 3 sample heated to 300 °C induced a smooth and flat surface, where no scratches caused by a mechanical polishing were observed. The present finding indicates that the melting of the surface occurred by the combined effect of the heat-assistance and the increased absorption coefficient of TiO 2 . In the present system, the absorption coefficient in the ultraviolet region, which originates from TiO 2 , was found to increase with increasing temperature. The presented technique will open new possibilities in integrated optics; the surface of a small protruded or hollow area can be made smooth, which cannot be achieved by conventional mechanical polishing.

Original languageEnglish
Pages (from-to)1270-1274
Number of pages5
JournalJournal of Materials Research
Issue number5
Publication statusPublished - 2007 May 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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