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Er3+–Yb3+ codoped oxyfluoride germanate glass ceramics containing SrF2 nanocrystals for 1.5 µm optical amplification.

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Title: Er3+–Yb3+ codoped oxyfluoride germanate glass ceramics containing SrF2 nanocrystals for 1.5 µm optical amplification.
Authors: Li, Siqiang1 (AUTHOR), Zhang, Xizhen1 (AUTHOR) zhangxz01@sina.com, Song, Linke1 (AUTHOR), Zhang, Yanqiu1 (AUTHOR), Gao, Duan1 (AUTHOR), Zhang, Sujuan2 (AUTHOR), Pan, Xiuyu2 (AUTHOR), Zhang, Yuhang3 (AUTHOR), Chen, Baojiu1 (AUTHOR) chenmbj@sohu.com
Source: Journal of the American Ceramic Society. Mar2025, Vol. 108 Issue 3, p1-12. 12p.
Subjects: Germanate glasses, Absorption cross sections, Nanocrystals, Ceramics, Phonons
Abstract: Er3+–Yb3+ codoped transparent oxyfluoride germanate glass ceramics (GCs) containing SrF2 nanocrystals (NCs) have been prepared by melt quenching method. We have measured absorption, photoluminescence (PL), and PL decay. The PL spectra excited at 378 nm and 980 nm for 1.53 µm near‐infrared (NIR) and visible emission have been investigated. By using Judd–Ofelt (JO) theory, optical transition parameters have been calculated. Thanks to low phonon energy SrF2 NCs and high fluorine oxyfluoride glass matrix, strong 1.53 µm emission with large measured lifetime (τmeas) are observed. After SrF2 NCs formed, the intensity parameter Ω2 becomes smaller for GC samples, the PL intensity and full width at half maximum increase. Absorption cross section (σa) and emission cross section (σe) at 1.5 µm have been calculated by McCumber theory. The luminescence efficiency (η), effective linewidth (Δλeff), gain bandwidth (σeΔλeff), and figure of merit (σeτm) have been evaluated. The results show excellent optical amplification performance. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell 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.)
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  Label: Title
  Group: Ti
  Data: Er<superscript>3+</superscript>–Yb<superscript>3+</superscript> codoped oxyfluoride germanate glass ceramics containing SrF<subscript>2</subscript> nanocrystals for 1.5 µm optical amplification.
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Siqiang%22">Li, Siqiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Xizhen%22">Zhang, Xizhen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhangxz01@sina.com</i><br /><searchLink fieldCode="AR" term="%22Song%2C+Linke%22">Song, Linke</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Yanqiu%22">Zhang, Yanqiu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gao%2C+Duan%22">Gao, Duan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Sujuan%22">Zhang, Sujuan</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pan%2C+Xiuyu%22">Pan, Xiuyu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Yuhang%22">Zhang, Yuhang</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Baojiu%22">Chen, Baojiu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chenmbj@sohu.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Ceramic+Society%22">Journal of the American Ceramic Society</searchLink>. Mar2025, Vol. 108 Issue 3, p1-12. 12p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Germanate+glasses%22">Germanate glasses</searchLink><br /><searchLink fieldCode="DE" term="%22Absorption+cross+sections%22">Absorption cross sections</searchLink><br /><searchLink fieldCode="DE" term="%22Nanocrystals%22">Nanocrystals</searchLink><br /><searchLink fieldCode="DE" term="%22Ceramics%22">Ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Phonons%22">Phonons</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Er3+–Yb3+ codoped transparent oxyfluoride germanate glass ceramics (GCs) containing SrF2 nanocrystals (NCs) have been prepared by melt quenching method. We have measured absorption, photoluminescence (PL), and PL decay. The PL spectra excited at 378 nm and 980 nm for 1.53 µm near‐infrared (NIR) and visible emission have been investigated. By using Judd–Ofelt (JO) theory, optical transition parameters have been calculated. Thanks to low phonon energy SrF2 NCs and high fluorine oxyfluoride glass matrix, strong 1.53 µm emission with large measured lifetime (τmeas) are observed. After SrF2 NCs formed, the intensity parameter Ω2 becomes smaller for GC samples, the PL intensity and full width at half maximum increase. Absorption cross section (σa) and emission cross section (σe) at 1.5 µm have been calculated by McCumber theory. The luminescence efficiency (η), effective linewidth (Δλeff), gain bandwidth (σeΔλeff), and figure of merit (σeτm) have been evaluated. The results show excellent optical amplification performance. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell 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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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1111/jace.20259
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      – Code: eng
        Text: English
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        PageCount: 12
        StartPage: 1
    Subjects:
      – SubjectFull: Germanate glasses
        Type: general
      – SubjectFull: Absorption cross sections
        Type: general
      – SubjectFull: Nanocrystals
        Type: general
      – SubjectFull: Ceramics
        Type: general
      – SubjectFull: Phonons
        Type: general
    Titles:
      – TitleFull: Er3+–Yb3+ codoped oxyfluoride germanate glass ceramics containing SrF2 nanocrystals for 1.5 µm optical amplification.
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            NameFull: Li, Siqiang
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            NameFull: Zhang, Xizhen
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            NameFull: Song, Linke
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            NameFull: Zhang, Yanqiu
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            NameFull: Pan, Xiuyu
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          Dates:
            – D: 01
              M: 03
              Text: Mar2025
              Type: published
              Y: 2025
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