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arXiv · 1711.03843

Electromechanics of Suspended Spiral Capacitors and Inductors

Sina Khorasani
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Abstract

Most electromechanical devices are in two-dimensional metallic drums under high tensile stress, which causes increased mechanical frequency and quality factor. However, high mechanical frequencies lead to small zero-point displacements $x_{\rm zp}$, which limits the single-photon interaction rate $g_0$. For applications which demand large $g_0$, any design with increased $x_{\rm zp}$ is desirable. It is shown that a patterned drum by spiral shape can resolve this difficulty, which is obtained by a reduction of mechanical frequency while the motion mass is kept almost constant. An order of magnitude increase in $g_0$, and agreement between simulations and interferometric measurements is observed.

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Sina Khorasani. 2017-12-27. Electromechanics of Suspended Spiral Capacitors and Inductors. https://doi.org/10.1063/1.5012867

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