Mechanism of the enhanced upconversion emissions in Yb3+/Er3+-codoped germanate-tellurite glasses

被引：15
|
作者：
Yang, ZM [1 ]
Zhang, QY [1 ]
Liu, YH [1 ]
Jiang, ZH [1 ]
机构：
[1] S China Univ Technol, Minist Educ, Inst Opt Commun Mat, Key Lab Special Funct Mat & Adv Mfg Technol, Guangzhou 510641, Peoples R China
来源：
ACTA PHYSICA SINICA | 2005年 / 54卷 / 05期
关键词：
Er3+ -doped glasses; upconversion luminescence; maximum phonon energy;
D O I：
10.7498/aps.54.2013
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The intensity of upconversion emissions of rare-earth ions is determined by the maximum phonon energy of glass host. In this paper the intensities of upconversion emissions in Yb3+/Er3+ -codoped germanate-tellurite glasses upon the excitation of 980nm laser diode were extremely enhanced by replacing PbO with Bi-2 O-3 and increasing the size of alkali-metal ions. Raman spectra show that the maximum phonon energies of the glass hosts investigated keep unchanged, while the maximum phonon density decreases on substituting Bi2O3 for PbO and increasing the size of alkali-metal ions. Based on the non-radiative decay rate, it is found that the maximum phonon density is the main reason for the enhancement of upconversion emissions in Yb3+,/ Er3+ codoped germanate-tellurite glasses.
引用
收藏
页码：2013 / 2018
页数：6
相关论文
共 18 条
  • [1] Optical transitions and upconversion properties of Ho3+ doped ZnO-TeO2 glass
    Boyer, JC
    Vetrone, F
    Capobianco, JA
    Speghini, A
    Bettinelli, M
    [J]. JOURNAL OF APPLIED PHYSICS, 2003, 93 (12) : 9460 - 9465
  • [2] CHEN XB, 1995, SPECTROSC SPECT ANAL, V15, P1
  • [3] The luminescence of Er3+, Yb3+, Tm3+-codoped tellurite glass pumped at 970nm
    Dai, SX
    Yang, JH
    Liu, ZP
    Wen, L
    Hu, LL
    Jiang, ZH
    [J]. ACTA PHYSICA SINICA, 2003, 52 (03) : 729 - 735
  • [4] HEAVY-METAL OXIDE GLASSES
    DUMBAUGH, WH
    LAPP, JC
    [J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (09) : 2315 - 2326
  • [5] GAN FX, 2001, CHIN SCI FDN, V1, P5
  • [6] HAI L, 2003, J APPL PHYS, V93, P186
  • [7] Er3+-doped phosphate glasses for fiber amplifiers with high gain per unit length
    Jiang, SB
    Luo, T
    Hwang, BC
    Smekatala, F
    Seneschal, K
    Lucas, J
    Peyghambarian, N
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 2000, 263 (1-4) : 364 - 368
  • [8] Frequency upconversion in Er3+/Yb3+-codoped chalcogenide glass
    Oliveira, AS
    de Araujo, MT
    Gouveia-Neto, AS
    Neto, JAM
    Sombra, ASB
    Messaddeq, Y
    [J]. APPLIED PHYSICS LETTERS, 1998, 72 (07) : 753 - 755
  • [9] INFRARED TO VISIBLE UP-CONVERSION IN ER3+-DOPED-LEAD-GERMANATE GLASS - EFFECTS OF ER3+ ION CONCENTRATION
    PAN, Z
    MORGAN, SH
    LOPER, A
    KING, V
    LONG, BH
    COLLINS, WE
    [J]. JOURNAL OF APPLIED PHYSICS, 1995, 77 (09) : 4688 - 4692
  • [10] Raman spectra and thermal analysis of a new lead-tellurium-germanate glass system
    Pan, ZD
    Morgan, SH
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1997, 210 (2-3) : 130 - 135
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