Bargatin, Igor and Roukes, M. L. (2003) Nanomechanical Analog of a Laser: Amplification of Mechanical Oscillations by Stimulated Zeeman Transitions. Physical Review Letters, 91 (13). Art. No. 138302. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:BARprl03
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We propose a magnetomechanical device that exhibits many properties of a laser. The device is formed by a nanocantilever and dynamically polarized paramagnetic nuclei of a solid sample in a strong external magnetic field. The corresponding quantum oscillator and effective two-level systems are coupled by the magnetostatic dipole-dipole interaction between a permanent magnet on the cantilever tip and the magnetic moments of the spins, so that the entire system is effectively described by the Jaynes-Cummings model. We consider the possibility of observing transient and cw lasing in this system, and show how these processes can be used to improve the sensitivity of magnetic resonance force microscopy.
|Additional Information:||©2003 The American Physical Society (Received 26 April 2003; published 26 September 2003) We are grateful for support of this work from DARPA DSO/MOSAIC under ONR Grant No. N00014-02-1-0602, and from the NSF under Grant No. ECS-0116776. We also thank Ed Myers and John Sidles for helpful comments. Preprint arXiv:cond-mat/0304605 v2 3 Jul 2003|
|Subject Keywords:||oscillations; Zeeman effect; magnetomechanical effects; permanent magnets; magnetic moments; Jaynes-Cummings model; magnetic force microscopy|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||04 Oct 2006|
|Last Modified:||18 Sep 2014 18:11|
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