dorsal/arxiv
View SchemaInvestigating the optical properties of carbonado-diamonds
| Authors | Jozsef Garai, Stephen E. Haggerty, Andriy Durygin |
|---|---|
| Categories | |
| ArXiv ID | physics/0601136 |
| URL | https://arxiv.org/abs/physics/0601136 |
Abstract
Carbonado-diamond is the most enigmatic of diamond types, and surprisingly there are few optical studies. In some cases, the diamond peak at 1332.5 cm-1 is absent, and the presence of a D-band graphite peak around 1320 cm-1 is observed in our Raman investigation. The disappearance of the diamond peak in carbonado-diamond is interpreted as the combined effect of small crystal size and the high absorption of graphite. The photoluminescence spectra of carbonado-diamond shows two new zero phonon lines at 584.2 nm (2.12 eV) and at 743 nm (1.67 eV). By heating the carbonado-diamond to 1500 oC for ten minutes in argon the appearance of an additional peak at 693.5 nm (1.786 eV) is detected. The infrared absorption spectra of carbonado-diamond powder indicate either extremely low or extremely high absorption.
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"abstract": "Carbonado-diamond is the most enigmatic of diamond types, and surprisingly\nthere are few optical studies. In some cases, the diamond peak at 1332.5 cm-1\nis absent, and the presence of a D-band graphite peak around 1320 cm-1 is\nobserved in our Raman investigation. The disappearance of the diamond peak in\ncarbonado-diamond is interpreted as the combined effect of small crystal size\nand the high absorption of graphite. The photoluminescence spectra of\ncarbonado-diamond shows two new zero phonon lines at 584.2 nm (2.12 eV) and at\n743 nm (1.67 eV). By heating the carbonado-diamond to 1500 oC for ten minutes\nin argon the appearance of an additional peak at 693.5 nm (1.786 eV) is\ndetected. The infrared absorption spectra of carbonado-diamond powder indicate\neither extremely low or extremely high absorption.",
"arxiv_id": "physics/0601136",
"authors": [
"Jozsef Garai",
"Stephen E. Haggerty",
"Andriy Durygin"
],
"categories": [
"physics.geo-ph",
"physics.optics"
],
"title": "Investigating the optical properties of carbonado-diamonds",
"url": "https://arxiv.org/abs/physics/0601136"
},
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