21 May 2018 Interference-based multimode opto-electro-mechanical transducers
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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.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
I. Moaddel Haghighi, I. Moaddel Haghighi, N. Malossi, N. Malossi, R. Natali, R. Natali, G. Di Giuseppe, G. Di Giuseppe, D. Vitali, D. Vitali, } "Interference-based multimode opto-electro-mechanical transducers", Proc. SPIE 10674, Quantum Technologies 2018, 106740B (21 May 2018); doi: 10.1117/12.2309286; https://doi.org/10.1117/12.2309286
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