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

Abstract

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)
Pages181-183
Number of pages3
ISBN (Electronic)1557527210
Publication statusPublished - 2002
EventNonlinear Optics: Materials, Fundamentals and Applications, NLO 2002 - Wailea, United States
Duration: Jul 29 2002Aug 2 2002

Publication series

NameOptics InfoBase Conference Papers

Conference

ConferenceNonlinear Optics: Materials, Fundamentals and Applications, NLO 2002
Country/TerritoryUnited States
CityWailea
Period7/29/028/2/02

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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