Effect of high valency cations on high refractive-index and low dispersion characteristics of borate glasses

Takayuki Mito, Shigeru Fujino, Hiromichi Takebe, Kenji Morinaga

研究成果: Contribution to journalArticle査読

7 被引用数 (Scopus)

抄録

Refractive indexes of barium borate-based glasses were measured in the wavelength range from 0.265 to 1.710 μm by using the minimum deviation method. Factors affecting the refractive index dispersion are discussed by using the single-oscillator Drude-Voigt equation. Borate glasses are characterized by the larger number N of molecules in a unit volume than that for silicate glasses. The feature of borate glasses, that is, relative high refractive index and low dispersion, is dominated by the number N which is related to the fraction of four-coordinated borons estimated by Greenblatt and Bray. Borate glasses containing high valency cations, e.g., Y3+, La3+, Ti4+, Nb5+, Ta5+, possess higher refractive indexes and higher dispersion than barium borate binary glasses.

本文言語英語
ページ(範囲)1163-1167
ページ数5
ジャーナルNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
102
DOI
出版ステータス出版済み - 1994

All Science Journal Classification (ASJC) codes

  • セラミックおよび複合材料
  • 化学 (全般)
  • 凝縮系物理学
  • 材料化学

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