Polarization dependence of the luminescence properties of the erbium doped KNbO 3 ferroelectric ceramics

Cheng Hung Wen, Sheng-Yuan Chu, Cheng Kuo Wen

研究成果: Conference article

5 引文 斯高帕斯(Scopus)

摘要

The polarization dependence of the Stokes photoluminescence (PL) spectra of erbium doped Potassium niobate (KNbO 3) ceramics has been investigated by studying the relations between PL spectra with the poling electric field, poling time. All the Stark splitting components of 4S 3/24I 15/2 transition were evident after the poling process. The experiments also showed that the polarization enhances the fine structure and modifies the intensity ratio of the 4S 3/24I 15/2, 4F 9/24I 15/2 and the 4S 3/24I 3/2 transitions at different poling electric fields and poling times. From the similar tendency between the frequency shift of PL spectra Δv and the planar electromechanical coupling factor Kp demonstrate indirectly that the Stark splitting was produced by the dipole moment of erbium ions state interacting with the internal local electric field due to polarization.

原文English
頁(從 - 到)267-275
頁數9
期刊Integrated Ferroelectrics
69
DOIs
出版狀態Published - 2005 十二月 1
事件16th International Symposium on Integrated Ferroelectrics, ISIF-16 - Gyeongju, Korea, Republic of
持續時間: 2004 四月 52004 四月 8

    指紋

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Control and Systems Engineering
  • Ceramics and Composites
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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