Ultrahigh-Q mechanical oscillators through optical trapping

Details Ultrahigh-Q mechanical oscillators through optical trapping Ultrahigh-Q mechanical oscillators through optical trapping

Apr 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012njph...14d5002c&link_type=abstract

New Journal of Physics, Volume 14, Issue 4, pp. 045002 (2012).

Physics

1

Scientific paper

Rapid advances are being made toward optically cooling a single mode of a micro-mechanical system to its quantum ground state and observing the quantum behavior at macroscopic scales. Reaching this regime in room-temperature environments requires a stringent condition on the mechanical quality factor Qm and frequency fm, Qmfm ≳ kBTbath/h, which so far has been marginally satisfied only in a small number of systems. Here we propose and analyze a new class of systems that should enable one to obtain unprecedented Q-frequency products. The technique is based on the use of optical forces to ‘trap’ and stiffen the motion of a tethered mechanical structure, thereby freeing the resulting mechanical frequencies and decoherence rates from the underlying material properties.

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