Phys. Rev. Lett. 107, 273601 (2011) [5 pages]Laser Cooling and Optical Detection of Excitations in a LC Electrical CircuitReceived 5 July 2011; published 27 December 2011 We explore a method for laser cooling and optical detection of excitations in a room temperature LC electrical circuit. Our approach uses a nanomechanical oscillator as a transducer between optical and electronic excitations. An experimentally feasible system with the oscillator capacitively coupled to the LC and at the same time interacting with light via an optomechanical force is shown to provide strong electromechanical coupling. Conditions for improved sensitivity and quantum limited readout of electrical signals with such an “optical loud speaker” are outlined. © 2011 American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.107.273601
DOI:
10.1103/PhysRevLett.107.273601
PACS:
42.50.Wk, 78.20.Jq, 85.60.Bt
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