Abstract: A system may include a laser source, an acousto-optic modulator (AOM) coupled to the laser source, an atom trap, and at least one optical medium coupled between the AOM and the atom trap. Furthermore, at least one piezoelectric transducer may be coupled to the at least one optical medium, and a beam polarization controller may be coupled to the at least one piezoelectric transducer.

Abstract: A motorized cooler cart including a wheeled parallelepiped insulated cooler body with a housing compartment disposed on a rear side thereof which contains a rechargeable battery, a retractable power cord in operational communication with the battery, and a drive gear motor in operational communication with the wheels. A telescopic handle is retractable and alternately extendible from the housing compartment. When the handle is extended, a speed control switch disposed on the handle and the drive gear motor are activated to rotate the wheels. The user only guides the cooler body. The present device also includes carrying handles, a cushioned seat atop a hinged lid, a foldable backrest, an electrical outlet on the rear side, cup holders extendible from channels in the lid, a rod holder, at least one storage pouch, and a dry storage tray. A pair of armrests is also provided.