We present a spectroscopic study of transparent forsterite nanocrystalline glass–ceramic doped with chromium, a promising active medium for near-infrared fiber-optic applications. Absorption, emission, excited-state absorption spectra, and continuous function decay analysis of luminescence decay reveal the presence of Cr3+ and Cr4+ centers in both glass and crystal phases. The optical behavior of Cr3+ and Cr4+ centers is discussed and compared with that in bulk forsterite crystals.
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Sharonov et al. (2004) studied this question.
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