Optical cooling of atoms in microtraps by time-delayed reflection

We present a theoretical analysis of a novel scheme for optical cooling of particles that does not in principle require a closed optical transition. A tightly confined laser beam interacting with a trapped particle experiences a phase shift, which upon reflection from a mirror or resonant microstruc...

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Bibliographic Details
Main Authors: Horak, Peter (Author), Xuereb, André (Author), Freegarde, Tim (Author)
Format: Article
Language:English
Published: 2010-09.
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Summary:We present a theoretical analysis of a novel scheme for optical cooling of particles that does not in principle require a closed optical transition. A tightly confined laser beam interacting with a trapped particle experiences a phase shift, which upon reflection from a mirror or resonant microstructure produces a time-delayed optical potential for the particle. This leads to a nonconservative force and friction. A quantum model of the system is presented and analyzed in the semiclassical limit.