Abstract

Pavesi et al. reported that a Si ion implanted quartz substrate annealed at 1100°C emits light of a wavelength range from red to infrared and has an optical gain of 100cm-1, which enables realization of a Si-based laser [1]. In this paper. Si ions are implanted into fused silica substrates, and the samples are annealed at 1100, 1150, and 1200°C. We demonstrate that blue photoluminescence (PL) spectra having peak wavelengths around 400mn are generated from the samples in addition to the PL spectrum whose wavelength ranges from red to infrared that was reported by Pavesi et al. The longer-wavelength peak is reduced and only the blue PL peaks are observed from the samples after annealing above 1150°C.

© 2007 IEEE

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