Alkali-ion irradiated alpha-quartz: low-temperature cathodoluminescence after chemical epitaxy

K-P. Lieb; S. Gasiorek; J. Keinonen; P-K. Sahoo; T. Sajavaara

doi:10.1117/12.814237

2 December 2008 Alkali-ion irradiated alpha-quartz: low-temperature cathodoluminescence after chemical epitaxy

K-P. Lieb, S. Gasiorek, J. Keinonen, P-K. Sahoo, T. Sajavaara

Proceedings Volume 7142, Sixth International Conference on Advanced Optical Materials and Devices (AOMD-6); 714209 (2008) https://doi.org/10.1117/12.814237
Event: Sixth International Conference on Advanced Optical Materials and Devices, 2008, Riga, Latvia

Abstract

Even small fluences of implanted ions used for opto-doping alpha-quartz lead to amorphization of the matrix, but subsequent annealing in air or oxygen can restore its crystalline order (chemical epitaxy). Here we report on cathodoluminescence (CL) spectroscopy during chemical epitaxy of alpha-quartz irradiated with 50-keV Na-ions or 175-keV Rb ions and annealed in ¹⁸O₂-gas. In particular, the variation of the CL spectra with the ion fluence will be discussed. The CL spectra at 10 K show an intense 2.90-2.95 eV blue band and differ greatly from the ones taken at 300 K. Finally we report on the observation of a spider-web surface structure after Rb implantation and annealing in lowpressure oxygen.

Citation Download Citation

K-P. Lieb, S. Gasiorek, J. Keinonen, P-K. Sahoo, and T. Sajavaara "Alkali-ion irradiated alpha-quartz: low-temperature cathodoluminescence after chemical epitaxy", Proc. SPIE 7142, Sixth International Conference on Advanced Optical Materials and Devices (AOMD-6), 714209 (2 December 2008); https://doi.org/10.1117/12.814237

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