Photoluminescence Spectra of Tahitian Cultured Black Pearls
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摘要: 对各种颜色的塔希提养殖黑珍珠进行了系统的光致发光光谱测试。结果表明,主要存在5个发光谱峰,即597,619,653,676nm以及一个位于700~890nm之间的峰位不定的发光峰。认为619,653,676nm发光峰是由黑色有机色素引起的,可作为黑蝶贝产珠和人工处理黑珍珠的重要佐证。Abstract: The photoluminescence spectra of various Tahitian cultured black pearls have been tested.The results show that there are mainly five bands:5 97,61 9,65 3,676nm and a broad band which varies in the range 70 0~ 890 nm.The three bands,61 9,65 3and 676nm,are thought to be due to a kind of black pigment,and can be used in identifying pearls from Pincta-da magaritifera from naturally-coloured black pearls.
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Keywords:
- Tahitian black pearl /
- photoluminescence spectrum /
- black pigment
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[1] 刘卫东.塔希提黑珍珠的拉曼光谱特征及其鉴定意义[J].宝石和宝石学杂志,2003,5(1):1-4. [2] 高岩,张蓓莉.淡水养殖珍珠的颜色与拉曼光谱的关系[J].宝石和宝石学杂志,2001,3(3):17-20. [3] 李立平,陈钟惠.养殖珍珠的辐照处理[J].宝石和宝石学杂志,2002,4(3):16-21
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