An investigation of the influence of light-induced atomic desorption (LIAD) on the transmission spectra from point of\udview of LIAD application for miniaturization of magneto-optical sensors and anti-relaxation coatings diagnostics is\udreported. With reduction of the dimensions of the cells, the amplitude of the signals decreases and it can be compensated\udby increasing the atomic density with temperature using special high temperature anti-relaxation coatings, or by LIAD.\udLIAD is a non-thermal process in which atoms adsorbed at a surface are released under illumination. It is investigated in\udvarious papers and has different applications - vapor density stabilization, MOT loading, surface nanostructuring etc. In\udthis work the dependence of the shape of the absorption spectra on the laser power and blue light power is measured and\udanalysis of the influence of different factors is done. All measurements are performed on the Rb D2 line in 3 different\udvacuum cells (uncoated, paraffin coated and SC-77 coated) with a 460 nm light emitting diode illumination. The good\udknowledge of the factors influencing the alkali atom spectra will be useful not only for the development of new alloptical\udsensors, but for study atom-dielectric surface interactions and development of new all-optical methods for surface\udand coating diagnostics.
展开▼
