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This paper presents a low-cost infrared-based system developed for vehicle classification in urban areas. The system contains an equipment that is placed above the roadway and emits down-looking pulsed infrared beams through infrared LEDs (Light-Emitting Diodes). Vehicle profile is obtained detecting and analyzing the infrared light reflected by the vehicle passing directly below the equipment. Profiles...
We present an investigation on the phenomenon of population transfer via optical pumping in cesium atoms in the magneto-optical trap environment. In particular we describe a very simple scheme for the continuous production of cold cesium atoms in the lower hyperfine ground state 6S 1/2 , F=3, which can be useful for spectroscopic applications. Our results can be qualitatively understood...
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