doping level vs depth into the sample as obtained from SIMS data (after Ref. 2).
Detail of the fluorescence band obtained from the waveguide. A schematic diagram of the energy levels responsible of the different peaks is included as an inset.
fluorescence band obtained from the planar waveguide as a function of the in-depth distance.
(a) integrated emission as a function of the in-depth distance obtained from the planar waveguide and from a homogeneously doped reference sample. (b) Normalized integrated emission as a function of the in-depth distance obtained for the planar waveguide.
parameter as a function of the content calculated for the system.
Energy position of the , , and transitions as a function of the in-depth distance [(a), (b), and (c), respectively].
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