PbS quantum dots and BaF2 : Tm3+ nanocrystals co-doped glass for ultra-broadband near-infrared emission [Invited]

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Wei Wang (王 伟)
  • Qinpeng Chen (陈钦鹏)
  • Yifei Zhao (赵逸飞)
  • Yakun Le (乐亚坤)
  • Shengda Ye (叶昇达)
  • And 3 others
  • Mang Wan (万 芒)
  • Xiongjian Huang (黄雄健)
  • Guoping Dong (董国平)

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number021603
Journal / PublicationChinese Optics Letters
Volume20
Issue number2
Online published9 Dec 2021
Publication statusPublished - Feb 2022

Abstract

With the rapid growth of optical communications traffic, the demand for broadband optical amplifiers continues to increase. It is necessary to develop a gain medium that covers more optical communication bands. We precipitated PbS quantum dots (QDs) and BaF2 : Tm3+ nanocrystals (NCs) in the same glass to form two independent emission centers. The BaF2 NCs in the glass can provide a crystal field environment with low phonon energy for rare earth (RE) ions and prevent the energy transfer between RE ions and PbS QDs. By adjusting the heat treatment schedule, the emission of the two luminescence centers from PbS QDs and Tm3+ ions perfectly splices and covers the ultra-broadband near-infrared emission from 1200 nm to 2000 nm with bandwidth over 430 nm. Therefore, it is expected to be a promising broadband gain medium for fiber amplifiers.

Research Area(s)

  • Broadband near-infrared emission, Nanocrystal-glass composite, PbS quantum dot, Tm3+

Citation Format(s)

PbS quantum dots and BaF2: Tm3+ nanocrystals co-doped glass for ultra-broadband near-infrared emission [Invited]. / Wang (王 伟), Wei; Chen (陈钦鹏), Qinpeng; Zhao (赵逸飞), Yifei et al.
In: Chinese Optics Letters, Vol. 20, No. 2, 021603, 02.2022.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review