Crystalline dot and line patterning with SHG in samarium bismuth borate glasses by YAG laser irradiation

Tsuyoshi Honma, Yasuhiko Benino, Takumi Fujiwara, Takayuki Komatsu, Ryuji Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Transparent surface crystallized glasses in the rare-earth doped bismuth borate system have been successfully fabricated. The irradiation of CW YAG laser with a wavelength of 1064nm induces sharp refractive-index changes or crystalline dot formation, depending on Sm2O3 content in the glasses. In 10Sm2O3-30Bi2O3-60B2O3 glass, refractive-index changes (not crystallites) are induced by laser irradiations (power: 1W, time: 1-250s), and spherical spots with 2-45µm are formed. In 12.5Sm2O3-30Bi2O3-57.5B2O3 glass, crystalline dots with the diameters of 5-65µm are formed by laser irradiations (power:0.5-0.7W, times:1-250s). It is found that the crystalline dots generate second harmonic waves. Refractive-index changes by YAG laser irradiations are confirmed in 10Dy2O3-30Bi2O3-60B2O3 glass. In 10Sm2O3-35Bi2O3-55B2O3 glasses, 2-dimentional crystalline line patterns can be fabricated by scanning laser spots with the speeds of 1-10 µm·s-1. These crystalline lines have wave-guide structure with second order optical non linearity.

Original languageEnglish
Title of host publicationNonlinear Optics
Subtitle of host publicationMaterials, Fundamentals and Applications, NLO 2002
PublisherOptica Publishing Group (formerly OSA)
Number of pages3
ISBN (Electronic)1557527210
Publication statusPublished - 2002
Externally publishedYes
EventNonlinear Optics: Materials, Fundamentals and Applications, NLO 2002 - Wailea, United States
Duration: Jul 29 2002Aug 2 2002

Publication series

NameOptics InfoBase Conference Papers


ConferenceNonlinear Optics: Materials, Fundamentals and Applications, NLO 2002
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials


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