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High resolution imaging and optical control of Bose-Einstein condensates in an atom chip magnetic trap

2013; American Institute of Physics; Volume: 102; Issue: 8 Linguagem: Inglês

10.1063/1.4793522

1520-8842

Evan A. Salim, Seth C. Caliga, Jonathan Pfeiffer, Dana Z. Anderson,

Advanced Frequency and Time Standards

A high-resolution projection and imaging system for ultracold atoms is implemented using a compound silicon and glass atom chip. The atom chip is metalized to enable magnetic trapping while glass regions enable high numerical aperture optical access to atoms residing in the magnetic trap about 100 microns below the chip surface. The atom chip serves as a wall of the vacuum system, which enables the use of commercial microscope components for projection and imaging. Holographically generated light patterns are used to optically slice a cigar-shaped magnetic trap into separate regions; this has been used to simultaneously generate up to four Bose-condensates. Using fluorescence techniques we have demonstrated in-trap imaging resolution down to 2.5 microns