Abstract
A new method is presented for the analysis of spectra from spectrometers with a complicated instrumental function such as a comb-like one which may be represented as a sum of several narrow peaks shifted relative to one another. The method is based on the solution of the convolution integral equation using the signal restoration procedures employed in the software package RECOVERY. It is implemented for the case of a spectrometer consisting of a scanning Fabry - Pérot interferometer and a grating monochromator having equal rates of scanning. The efficiency of the procedure is demonstrated by applying it to the photoluminescence (PL) spectra of excitons bound to the isoelectronic hydrogen-related centres in silicon grown in a hydrogen atmosphere. It is shown that the spectral density of the analysed radiation is resolved successfully and that the spectrometer has effectively a greater working range and signal-to-noise ratio in comparison with the standard Fabry - Pérot interferometer. The procedure can be used in any kind of high-resolution spectroscopy (optical, x-ray, neutron, etc).
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