PHOTOEXTRACTION OF RUBBIUM ATOMS FROM THE VOLUME OF A PHOTONIC CRYSTAL
S. N. Atutov, A. I. Plekhanov
Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences, prosp. Akademika Koptyuga 1, Novosibirsk, 630090, Russia
Keywords: столкновение атомов с поверхностью, время адсорбции, диффузия, коэффициент диффузии атомов в фотонном кристалле, collision of atoms with surface, adsorption time, diffusion, diffusion coefficient of atoms in a photonic crystal
Abstract
The photoextraction of rubidium atoms from the volume of a photonic crystal has been investigated. It has been found that in the case of crystal irradiation in the stop zone where the desorbing light does not penetrate deeply, the separation of atoms occurs practically from its surface, so that the density of desorbed atoms in the cell decreases only exponentially. In the case of irradiation of the crystal outside the stop zone, the volume of the crystal is irradiated almost completely. In this connection, the exponential decrease in the density of atoms in the cell is replaced by its relatively slow reduction of diffusion nature. The volume diffusion coefficient rubidium atoms in the photonic crystal was measured to be 2 x 10-8 sm2/s.
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