Electron Paramagnetic Resonance and Its Use in the Study of Treated and Synthetic Diamond
- 作者：Mark E.Newton
- 会议时间：2013-10-30
- 关键词：EPR ; diamond ; identification
- 作者单位：Department of Physics, University of Warwick, Coventry, United Kingdom
- 母体文献：2013中国珠宝首饰学术交流会论文集
- 会议名称：2013中国珠宝首饰学术交流会
- 会议地点：北京
- 主办单位：中国珠宝玉石首饰行业协会
- 语种：chi
摘要
This paper will provide a very brief introduction to the technique of Electron Paramagnetic Resonance (EPR) and describe its use in the study of natural, treated and synthetic diamonds.Although the technological advances in treatments pose some challenges to the identification of genuine natural diamonds, the vast majority of treated diamonds can be rapidly identified by a combination of gemmological features, spectroscopic techniques, and the ever-improving knowledge of defect physics in diamond.EPR can be used to supplement the information obtained from other spectroscopic techniques (e.g.photoluminescence, optical absorption, etc.) and the characteristic combinations of defects and colour centres thus identified can be used not only to indicate treatment but also to allow the investigator to infer the nature of the treatment(s).