Abstract:
lonoluminescence (IL) spectra of diamond (natural samples and synthetic CVD) and its more common synthetic simulates such as sapphire, spinel, cubic zirconia, strontium titanate and yttrium aluminium garnet (YAG: Er) will be discussed here in order to support some criteria that will allow to distinguish between them. While diamond shows emission bands due to nitrogen defects, simulants, feature d-transition metals and rare earths such as Cr3+ , Mn2+ , Fe3+ , Ti3+ and Er3+ emissions. (C) 2007 Elsevier B.V. All rights reserved.