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Study on the Spectroscopic Characteristics of Irradiated Diamonds  

Shon, Shoo-Hack (R&D Department, Jella)
Kim, Bea-Seoub (R&D Department, Jella)
Jang, Yun-Deuk (Department of Geology, Kyungpook National University)
Kim, Jong-Rang (Department of Geology, Kyungpook National University)
Kim, Jong-Gun (Department of Gemology, Daegu Polytechnic College)
Kim, Jeong-Jin (Department of Earth & Environmental Sciences, Andong National University)
Publication Information
Journal of the Mineralogical Society of Korea / v.22, no.4, 2009 , pp. 407-415 More about this Journal
Abstract
The change of the nitrogen-related centers and the color change of electron beam irradiated type Ia natural diamonds were studied. The irradiation of diamond with high-energy electron beam creates lattice defects which are neutral single vacancy $V^0$. It increased with increasing electron dose density. The B aggregation seems to produce vacancies more easily than the A aggregation, because diamonds with more B aggregation have more platelets, which are sufficient breakable size by electron beam. Greenish blue color of irradiated diamond is changed to darker with increasing electron dose density. GR1 centers with a zero-phonon line at 741 nm and phonon sidebands make transmit visible light at 530 nm and it moves to 500 nm with higher intensity of GR1 centers.
Keywords
irradiated diamond; spectroscopic characteristic; nitrogen aggregate; color center;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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