文献类型：期刊文献

中文题名：Optical absorption spectra of tourmaline crystals from Altay,China

英文题名：Optical absorption spectra of tourmaline crystals from Altay, China

作者：Liu, Xueliang[1];Feng, Xiqi[2];Fan, Jianliang[1];Guo, Shouguo[1]

机构：[1]E China Univ Sci & Technol, Gemstone Testing Ctr, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

年份：2011

卷号：9

期号：8

中文期刊名：Chinese Optics Letters

外文期刊名：CHINESE OPTICS LETTERS

收录：CSTPCD;;EI(收录号：20113714332818);Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000293821100025)】；CSCD:【CSCD2011_2012】；PubMed;

语种：英文

中文关键词：Color centers;Crystals;Infrared devices;Light absorption;Spectrum analysis

外文关键词：Silicate minerals - Spectrum analysis - Infrared devices - Color centers

摘要：Tourmaline is an important functional and gem material. The current study examines pink, green, and brownish-green tourmalines from Altay deposit. Based on X-ray fluorescence （XRF） quantitative analyses and ultrariolet-visible-near-infrared （UV-VIS NIR） spectral analyses in combination with annealing ex- periments, the color center of tourmaline is found to be related to the d - d transitions of ions or the d - d transitions of exchange coupled ions. Annealing crystMs treatment affects the color improvement of tourmaline
Tourmaline is an important functional and gem material. The current study examines pink, green, and brownish-green tourmalines from Altay deposit. Based on X-ray fluorescence (XRF) quantitative analyses and ultrariolet-visible-near-infrared (UV-VIS-NIR) spectral analyses in combination with annealing experiments, the color center of tourmaline is found to be related to the d-d transitions of ions or the d-d transitions of exchange coupled ions. Annealing treatment affects the color improvement of tourmaline crystals.