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The efficiency of photodesorption of Rb atoms previously collected on polymerorganic film has been studied in detail. This study was carried out in a Pyrexglass cell of which the inner surface was covered with (poly)dimethylsiloxane(PDMS) film and illuminated by a powerful flash lamp. The desorption dynamic ofthe Rb atoms density in the cell caused by the illumination and percentage ofdesorbed atoms was studied by using of Rb resonance lamp and free running diodelaser as sources of probing light. It was determined that 85 percent collectedchemical active Rb atoms and stored during 16 seconds in the closed cell, 75percent in the pumped cell can be desorbed by single flash of the lamp. Thenumber of stored atoms decays with a characteristic time of 60 min in isolatedcell and with a time 12.4 minutes in a pumped cell. We believe that thisefficient method of collection and fast realization of atoms or molecules couldbe used for enhancement of sensitivity of existed sensors for the tracedetection of various elements (including toxic or radioactive ones) which isimportant to environmental applications, medicine or in geology. The effectmight help to construct an efficient light-driven atomic source for amagneto-optical trap in a case of extremely low vapor density or very weak fluxof atoms, such as artificial radioactive alkali atoms.

the european physical journal. d, atomic, molecular and optical physics/the european physical journal. d, atomic, molecular, optical and plasma physics

Efficiency of photodesorption of Rb atoms collected on polymer organic film in vapor-cell