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Proceedings Paper

Interference-based multimode opto-electro-mechanical transducers
Author(s): I. Moaddel Haghighi; N. Malossi; R. Natali; G. Di Giuseppe; D. Vitali
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Paper Abstract

As recently demonstrated [T. Bagci, et al., Nature 507, 81 (2013)], an opto-electro-mechanical system formed by a nanomembrane, capacitively coupled to an LC resonator and to an optical interferometer, may be employed for the high{sensitive optical readout of rf signals. Here we show through a proof of principle device how the bandwidth of such kind of transducer can be increased by controlling the interference between the electromechanical interaction pathways of a two{mode mechanical system. The transducer reaches a sensitivity of 10 nV=Hz1/2 over a bandwidth of 5 kHz and a broader band sensitivity of 300 nV=Hz1/2 over a bandwidth of 15 kHz. We discuss strategies for improving the performance of the device, showing that, for the same given sensitivity, a mechanical multi-mode transducer can achieve a bandwidth significantly larger than that of a single-mode one.

Paper Details

Date Published: 21 May 2018
PDF: 9 pages
Proc. SPIE 10674, Quantum Technologies 2018, 106740B (21 May 2018); doi: 10.1117/12.2309286
Show Author Affiliations
I. Moaddel Haghighi, Univ. degli Studi di Camerino (Italy)
N. Malossi, Univ. degli Studi di Camerino (Italy)
INFN (Italy)
R. Natali, Univ. degli Studi di Camerino (Italy)
INFN (Italy)
G. Di Giuseppe, Univ. degli Studi di Camerino (Italy)
INFN (Italy)
D. Vitali, Univ. degli Studi di Camerino (Italy)
INFN (Italy)
CNR-INO (Italy)

Published in SPIE Proceedings Vol. 10674:
Quantum Technologies 2018
Jürgen Stuhler; Andrew J. Shields; Miles J. Padgett, Editor(s)

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