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作者:

Wang, JY (Wang, JY.) | Hao, W (Hao, W.) | Zhao, LJ (Zhao, LJ.) (学者:赵丽娇) | Lu, Y (Lu, Y.) (学者:卢岳)

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EI Scopus SCIE PKU CSCD

摘要:

In this work, TiBa glass microspheres doped with Nd3+ for morphology-dependent resonances of emission were designed and prepared. The emission spectra of TiBa glass plate and TiBa glass microspheres (45 and 13 pin in diameter) under 514 nm. excitation were measured. The authors observed many regularly spaced, sharp peaks in the emission spectra of a Nd3+-doped glass microsphere. Based on the Me scattering theory, the wavelength separation between the adjacent resonant peaks for the 45 pm sphere was calculated to be 3.0 for 810 run. This value agrees well with the observed peak separation (3.1 nm), which indicates the contribution of the whispering gallery modes. The emission intensities of a Nd3+-doped TiBa glass microsphere (13 mu m in diameter) in the 901.69 nm region were plotted against the excitation laser power. The emission intensities of the microsphere exhibit the linear dependence at the low excitation power (< 2 mW). The 901.69 nm emission intensity of the microsphere steeply increases at the excitation power of 2 mW, which can be ascribed to the laser operation.

关键词:

glass microsphere optical micro-cavity luminescence of Nd3+

作者机构:

  • [ 1 ] Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China
  • [ 2 ] Nankai Univ, Coll Phys Sci, Photon Ctr, Tianjin 300071, Peoples R China
  • [ 3 ] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China

通讯作者信息:

  • [Wang, JY]Beijing Univ Technol, Coll Appl Sci, Beijing 100022, Peoples R China

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来源 :

SPECTROSCOPY AND SPECTRAL ANALYSIS

ISSN: 1000-0593

年份: 2005

期: 4

卷: 25

页码: 499-501

0 . 7 0 0

JCR@2022

ESI学科: CHEMISTRY;

JCR分区:4

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