Heidelberg 2015 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 15: Poster: Quantum Optics and Photonics I
Q 15.50: Poster
Montag, 23. März 2015, 17:00–19:00, C/Foyer
Cold Atom Based Magnetic Microscopy — •Timothy James1, Amruta Gadge1, Jorge Ferras1, Jessica Maclean1, Christopher Mellor1, Francesco Intravaia2, Mark Fromhold1, Christian Koller3, Fedja Orucevic1, and Peter Kruger1 — 1School of physics and Astronomy, University of Nottingham, Nottingham NG7 2RD — 2Institut fur Physik, Humboldt- Universitaet zu Berlin, Newtonstr. 15, 12489 Berlin, Germany. — 3Mirco- & Nano systems FH Wiener Neustadt, Austria
Cold atoms can be used as highly sensitive surface probes. The resolution of the probes would be increased by trapping the atoms closer to the surface. However closer trapping to the surface leads to higher loss rates due to distance based effects such as Johnson noise and Casimir force.
The use of a dual colour magneto optical trap will allow for the trapping of an increased number of atoms than is achieved using the single MOT. We will present a simple model for the interaction of an atom with the two mode light field.
We are designing a PCB to allow the transport of atoms from MOT to the surface of a sample. The samples will be composed of graphene sheets supported by a TEM grid and graphene hall bars.