Friday, 30 May 2014

Scientists overcome fundamental atom laser limit to build brightest atom laser to date

Science Focus

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The new atom laser technique can be used to create different types of lasers. These figures show the atom density distributions of (a) a well-collimated atom laser beam, (b) an ultra-high flux atom laser, and (c) an atom beam combining an atom laser and thermal emission. Credit: Bolpasi, et al. ©2014 IOP Publishing In an atom laser, millions of individual atoms propagate through space with minimal spreading, just like photons propagate in a coherent photon laser beam. Although both types of lasers are similar, atom lasers are still in the early stages of research with much work to be done before they can be used for applications, which may include atom lithography, atom interferometry, and magnetometry (measuring magnetic fields). A key factor for both types of lasers is their flux, which is the rate at which the atoms and photons are emitted. In current atom lasers, the flux is fundamentally limited by the same outcoupling process that is used to create the atom laser in the first place. Now in a new study published in the New Journal of Physics, researchers from Greece and Singapore have demonstrated a novel, ultra-bright atom laser that overcomes this fundamental atom laser limit, achieving a

The post Scientists overcome fundamental atom laser limit to build brightest atom laser to date has been published on Technology Org.

 
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