High-Precision Displacement Sensing of Monolithic Piezoelectric Disk Resonators Using a Single-Electron Transistor

J. Li, J. T. Santos, M. A. Sillanpää

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

2 Sitaatiot (Scopus)

Abstrakti

A single-electron transistor (SET) can be used as an extremely sensitive charge detector. Mechanical displacements can be converted into charge, and hence, SETs can become sensitive detectors of mechanical oscillations. For studying small-energy oscillations, an important approach to realize the mechanical resonators is to use piezoelectric materials. Besides coupling to traditional electric circuitry, the strain-generated piezoelectric charge allows for measuring ultrasmall oscillations via SET detection. Here, we explore the usage of SETs to detect the shear-mode oscillations of a 6-mm-diameter quartz disk resonator with a resonance frequency around 9 MHz. We measure the mechanical oscillations using either a conventional DC SET, or use the SET as a homodyne or heterodyne mixer, or finally, as a radio-frequency single-electron transistor (RF-SET). The RF-SET readout is shown to be the most sensitive method, allowing us to measure mechanical displacement amplitudes below 10−13 m. We conclude that a detection based on a SET offers a potential to reach the sensitivity at the quantum limit of the mechanical vibrations.
AlkuperäiskieliEnglanti
Sivut1-14
Sivumäärä14
JulkaisuJournal of Low Temperature Physics
Varhainen verkossa julkaisun päivämäärä7 helmikuuta 2018
DOI - pysyväislinkit
TilaJulkaistu - 2018
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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  • Projektit

    CAVITYQPD: Cavity quantum phonon dynamics

    Sillanpää, M., Mercier de Lepinay, L., Ockeloen-Korppi, C., Brandt, M., Santos, J. T., Välimaa, A., Kervinen, M., Tong, F., Mahato, S., Damskägg, E., Crump, W., Rissanen, I. & Förbom, W.

    20/11/201431/03/2021

    Projekti: EU: ERC grants

    Matalien lämpötilojen kvantti-ilmiöiden ja komponenttien huippuyksikkö

    Sillanpää, M.

    01/01/201531/01/2018

    Projekti: Academy of Finland: Other research funding

    Laitteet

    OtaNano

    Anna Rissanen (Manager)

    Aalto-yliopisto

    Laitteistot/tilat: Facility

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