Amplified optomechanics in a unidirectional ring cavity
Amplified optomechanics in a unidirectional ring cavity
We investigate optomechanical forces on a nearly lossless scatterer, such as an atom pumped far off-resonance or a micromirror, inside an optical ring cavity. Our model introduces two additional features to the cavity: an isolator is used to prevent circulation and resonant enhancement of the pump laser field and thus to avoid saturation of or damage to the scatterer, and an optical amplifier is used to enhance the effective Q-factor of the counterpropagating mode and thus to increase the velocity-dependent forces by amplifying the back-scattered light. We calculate friction forces, momentum diffusion, and steady-state temperatures to demonstrate the advantages of the proposed setup.
1342-1348
Xuereb, André
2c719b8f-f002-4e1e-b757-250795ff9069
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Freegarde, Tim
01a5f53b-d406-44fb-a166-d8da9128ea7d
2011
Xuereb, André
2c719b8f-f002-4e1e-b757-250795ff9069
Horak, Peter
520489b5-ccc7-4d29-bb30-c1e36436ea03
Freegarde, Tim
01a5f53b-d406-44fb-a166-d8da9128ea7d
Xuereb, André, Horak, Peter and Freegarde, Tim
(2011)
Amplified optomechanics in a unidirectional ring cavity.
[in special issue: New Cooling Mechanisms for Atoms and Molecules]
Journal of Modern Optics, 58 (15), .
(doi:10.1080/09500340.2011.559316).
Abstract
We investigate optomechanical forces on a nearly lossless scatterer, such as an atom pumped far off-resonance or a micromirror, inside an optical ring cavity. Our model introduces two additional features to the cavity: an isolator is used to prevent circulation and resonant enhancement of the pump laser field and thus to avoid saturation of or damage to the scatterer, and an optical amplifier is used to enhance the effective Q-factor of the counterpropagating mode and thus to increase the velocity-dependent forces by amplifying the back-scattered light. We calculate friction forces, momentum diffusion, and steady-state temperatures to demonstrate the advantages of the proposed setup.
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e-pub ahead of print date: 3 March 2011
Published date: 2011
Organisations:
Optoelectronics Research Centre, Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 205583
URI: http://eprints.soton.ac.uk/id/eprint/205583
ISSN: 0950-0340
PURE UUID: f4d97ed6-bbaf-4598-9214-aee644c5470d
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Date deposited: 12 Dec 2011 15:20
Last modified: 15 Mar 2024 03:17
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Author:
André Xuereb
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