https://scholars.lib.ntu.edu.tw/handle/123456789/323835
標題: | Composition dependence of the microspectroscopy of Cr ions in double-clad Cr:YAG crystal fiber | 作者: | Chen, J.-C. Huang, K.-Y. Tsai, C.-N. Lin, Y.-S. Lai, C.-C. Liu, G.-Y. Kao, F.-J. SHENG-LUNG HUANG Lo, C.-Y. Shen, P. |
公開日期: | 2006 | 卷: | 99 | 期: | 9 | 來源出版物: | Journal of Applied Physics | 摘要: | We have demonstrated the use of microspectroscopy for measuring the Cr 3+ and Cr4+ fluorescence spectra in double-clad Cr:YAG crystal fiber. The emission spectra of Cr3+ and Cr4+ are detected from core and inner cladding. The Cr3+ spectrum in the inner cladding shows a broad-band emission from 650 to 950 nm, while the emission of Cr4+ occurs in the range of 1.15-1.55 μm with a peak around 1.22 μm. The characteristic of Cr ion at high-field sites shows a narrow-band emission (2E →4A2 for Cr3+; 1E →3A2 for Cr4+), whereas that at low-field sites shows a broad-band emission (4T →4A2 for Cr3+; 3T →3A2 for Cr4+). The emission intensity ratio of high-field sites to low-field sites in the inner cladding with different compositions has been investigated. It varies from 20% to 29% for Cr3+ and from 7.1% to 11.3% for Cr4+ when the concentration of Si O2 increases from 26.9 to 43.0 wt %. © 2006 American Institute of Physics. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-33646860826&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/323835 |
ISSN: | 00218979 | DOI: | 10.1063/1.2196220 | SDG/關鍵字: | Band structure; Cladding (coating); Electromagnetic wave emission; Emission spectroscopy; Fluorescence; Silica; Spectrum analysis; Broad band emission; Crystal fiber; Emission spectra; Chromium |
顯示於: | 光電工程學研究所 |
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