Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/69675
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Type: | Journal article |
Title: | High-sensitivity three-mode optomechanical transducer |
Author: | Zhao, C. Fang, Q. Susmithan, S. Miao, H. Ju, L. Fan, Y. Blair, D. Hosken, D. Munch, J. Veitch, P. Slagmolen, B. |
Citation: | Physical Review A: Atomic, Molecular and Optical Physics, 2011; 84(6):1-6 |
Publisher: | American Physical Soc |
Issue Date: | 2011 |
ISSN: | 1050-2947 1094-1622 |
Statement of Responsibility: | C. Zhao, Q. Fang, S. Susmithan, H. Miao, L. Ju, Y. Fan, D. Blair, D. J. Hosken, J. Munch, P. J. Veitch and B. J. J. Slagmolen |
Abstract: | Three-mode optomechanical interactions have been predicted to allow the creation of very high sensitivity transducers in which very strong optical self-cooling and strong optomechanical quantum entanglement are predicted. Strong coupling is achieved by engineering a transducer in which both the pump laser and a single signal sideband frequency are resonantly enhanced. Here we demonstrate that very high sensitivity can be achieved in a very simple system consisting of a Fabry-Perot cavity with CO₂ laser thermal tuning. We demonstrate a displacement sensitivity of ∼1×10⁻¹⁷ m/√Hz, which is sufficient to observe a thermally excited acoustic mode in a 5.6 kg sapphire mirror with a signal-to-noise ratio of more than 20 dB. It is shown that a measurement sensitivity of ∼2×10⁻²⁰ m/√Hz limited by the quantum shot noise is achievable with optimization of the cavity parameters. |
Rights: | ©2011 American Physical Society |
DOI: | 10.1103/PhysRevA.84.063836 |
Grant ID: | ARC |
Published version: | http://dx.doi.org/10.1103/physreva.84.063836 |
Appears in Collections: | Aurora harvest Environment Institute publications IPAS publications |
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hdl_69675.pdf | Published version | 611.51 kB | Adobe PDF | View/Open |
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