Three Dimensional Imaging of Cold Atoms in a Magneto Optical Trap with a Light Field Microscope
Technical Report,01 Sep 2014,30 Sep 2017
Air Force Institute of Technology Wright Patterson AFB United States
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Imaging of trapped atoms in three dimensions utilizing a light field microscope is demonstrated in this work. Such a system is of interest in the development of atom interferometer accelerometers in dynamic systems where strictly defined focal planes may be impractical. A light field microscope was constructed utilizing a Lytro R Development Kit micro-lens array and sensor. It was used to image fluorescing rubidium atoms in a magneto-optical trap. The three-dimensional 3D volume of the atoms is reconstructed using a modeled point spread function PSF, taking into consideration the low magnification 1.25 of the system which changed typical assumptions in the optics model for the PSF. The 3D reconstruction is analyzed with respect to a standard o-axis fluorescence image.