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Proceedings Paper

Three-mode opto-acoustic interactions in optical cavities: introducing the three-mode opto-acoustic parametric amplifier
Author(s): Francis A. Torres; David G. Blair; Li Ju; Chunnong Zhao; Haixing Miao
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Paper Abstract

Three-mode opto-acoustic interactions can occur in optical cavities when a mirror acoustic mode has the appropriate mode shape and frequency to scatter carrier light into a cavity high order mode that has matching mode shape and frequency. The interaction can be very strong since the strength scales as the product of two optical and one acoustic quality factor. The phenomenon enables a new class of transducer, amplifier or optical cooler. Small-scale devices are predicted to enable efficient cooling to the quantum ground state, while in the long optical cavities of gravitational wave detectors, the phenomenon can lead to acoustic instability. Experimental results are presented for both large and smallscale systems, and the design of systems for optical cooling to the quantum ground state is discussed.

Paper Details

Date Published: 17 February 2010
PDF: 10 pages
Proc. SPIE 7579, Laser Resonators and Beam Control XII, 75791A (17 February 2010); doi: 10.1117/12.847173
Show Author Affiliations
Francis A. Torres, The Univ. of Western Australia (Australia)
David G. Blair, The Univ. of Western Australia (Australia)
Li Ju, The Univ. of Western Australia (Australia)
Chunnong Zhao, The Univ. of Western Australia (Australia)
Haixing Miao, The Univ. of Western Australia (Australia)

Published in SPIE Proceedings Vol. 7579:
Laser Resonators and Beam Control XII
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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