We report about the light-emitting properties of colour centres in lithium fluoride thin films and crystals treated with low-penetrating extreme-ultraviolet radiation and soft X-rays. Experimental fluorescence-imaging results show that, under the same irradiation conditions, stronger photoluminescence, up to a factor eight, is released by colour centres in a film thermally grown on silicon substrate than in a crystal. By using a classical-electromagnetism model, we take into account the role of the silicon substrate in the enhancement of spontaneous emission over a broad spectral range to analyze such behaviour. © 2010 Elsevier B.V. All rights reserved.
|Pages (from-to)||3035 - 3039|
|Number of pages||5|
|Journal||Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms|
|Publication status||Published - 1 Oct 2010|
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
Nichelatti, E., Almaviva, S., Bonfigli, F., Franzini, I., Montereali, R. M., & Vincenti, M. A. (2010). Photoluminescence from colour centres generated in lithium fluoride thin films and crystals by extreme-ultraviolet irradiation. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 268(19), 3035 - 3039. https://doi.org/10.1016/j.nimb.2010.05.034