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Micro-architecture of nonlinear optical Ba2TiGe2O8 crystal dots and lines on the surface of laser-induced crystallized glasses by chemical etching

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Title: Micro-architecture of nonlinear optical Ba2TiGe2O8 crystal dots and lines on the surface of laser-induced crystallized glasses by chemical etching
Authors: Honma, T.1, Hirokawa, N.1, Komatsu, T. komatsu@mst.nagaokaut.ac.jp
Source: Applied Surface Science. Dec2008 Part 2, Vol. 255 Issue 5, p3126-3131. 6p.
Subjects: Glass etching, Microstructure, Irradiation, Nonlinear optics, Crystal optics, Glass transition temperature
Abstract: Abstract: A combination technique of Nd:YAG laser (wavelength 1064nm) irradiations and chemical etchings is applied to fabricate micro-architectures of nonlinear optical Ba2TiGe2O8 crystal dots and lines on the glass surface, and chemical etching behaviors are examined from confocal scanning laser microscope observations. Continuous wave Nd:YAG lasers with a power of 0.85W and a scanning speed of 10μm/s are irradiated onto the surface of CuO (1mol)-doped 33.3BaO–16.7TiO2–50GeO2 glass and the crystallization of Ba2TiGe2O8 is induced. The chemical etching rates for crystallized dots and lines in a nitric acid solution (1N HNO3) are smaller than those for the precursor glass (non-irradiated part), and consequently, the micro-architecture of crystal dot arrays and patterned lines is fabricated. It is clarified that the post-annealing at near the glass transition temperature for the laser-irradiated samples is effective in eliminating selective rapid chemical etchings of the surrounding of crystal dots and lines. This study proposes that the patterning of optical functional crystals is possible on the glass surface by using the present technique. [Copyright &y& Elsevier]
Copyright of Applied Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 35611760
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Micro-architecture of nonlinear optical Ba<subscript>2</subscript>TiGe<subscript>2</subscript>O<subscript>8</subscript> crystal dots and lines on the surface of laser-induced crystallized glasses by chemical etching
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  Data: <searchLink fieldCode="AR" term="%22Honma%2C+T%2E%22">Honma, T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hirokawa%2C+N%2E%22">Hirokawa, N.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Komatsu%2C+T%2E%22">Komatsu, T.</searchLink><i> komatsu@mst.nagaokaut.ac.jp</i>
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  Data: <searchLink fieldCode="JN" term="%22Applied+Surface+Science%22">Applied Surface Science</searchLink>. Dec2008 Part 2, Vol. 255 Issue 5, p3126-3131. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Glass+etching%22">Glass etching</searchLink><br /><searchLink fieldCode="DE" term="%22Microstructure%22">Microstructure</searchLink><br /><searchLink fieldCode="DE" term="%22Irradiation%22">Irradiation</searchLink><br /><searchLink fieldCode="DE" term="%22Nonlinear+optics%22">Nonlinear optics</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+optics%22">Crystal optics</searchLink><br /><searchLink fieldCode="DE" term="%22Glass+transition+temperature%22">Glass transition temperature</searchLink>
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  Data: Abstract: A combination technique of Nd:YAG laser (wavelength 1064nm) irradiations and chemical etchings is applied to fabricate micro-architectures of nonlinear optical Ba2TiGe2O8 crystal dots and lines on the glass surface, and chemical etching behaviors are examined from confocal scanning laser microscope observations. Continuous wave Nd:YAG lasers with a power of 0.85W and a scanning speed of 10μm/s are irradiated onto the surface of CuO (1mol)-doped 33.3BaO–16.7TiO2–50GeO2 glass and the crystallization of Ba2TiGe2O8 is induced. The chemical etching rates for crystallized dots and lines in a nitric acid solution (1N HNO3) are smaller than those for the precursor glass (non-irradiated part), and consequently, the micro-architecture of crystal dot arrays and patterned lines is fabricated. It is clarified that the post-annealing at near the glass transition temperature for the laser-irradiated samples is effective in eliminating selective rapid chemical etchings of the surrounding of crystal dots and lines. This study proposes that the patterning of optical functional crystals is possible on the glass surface by using the present technique. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Applied Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.apsusc.2008.09.001
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      – Code: eng
        Text: English
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        Type: general
      – SubjectFull: Microstructure
        Type: general
      – SubjectFull: Irradiation
        Type: general
      – SubjectFull: Nonlinear optics
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      – SubjectFull: Crystal optics
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      – SubjectFull: Glass transition temperature
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      – TitleFull: Micro-architecture of nonlinear optical Ba2TiGe2O8 crystal dots and lines on the surface of laser-induced crystallized glasses by chemical etching
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            NameFull: Hirokawa, N.
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            – D: 31
              M: 12
              Text: Dec2008 Part 2
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              Y: 2008
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