dc.contributor.author
Singh, Rajan
dc.contributor.author
Nicholl, Ryan J.T.
dc.contributor.author
Bolotin, Kirill I.
dc.contributor.author
Ghosh, Saikat
dc.date.accessioned
2019-10-31T08:44:58Z
dc.date.available
2019-10-31T08:44:58Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/25847
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-25608
dc.description.abstract
There is a recent surge of interest in amplification and detection of tiny motion in the growing field of opto- and electromechanics. Here, we demonstrate widely tunable, broad bandwidth, and high gain all-mechanical motion amplifiers based on graphene/silicon nitride (SiNx) hybrids. In these devices, a tiny motion of a large-area SiNx membrane is transduced to a much larger motion in a graphene drum resonator coupled to SiNx. Furthermore, the thermal noise of graphene is reduced (squeezed) through parametric tension modulation. The parameters of the amplifier are measured by photothermally actuating SiNx and interferometrically detecting graphene displacement. We obtain a displacement power gain of 38 dB and demonstrate 4.7 dB of squeezing, resulting in a detection sensitivity of 3.8 [...], close to the thermal noise limit of SiNx.
en
dc.format.extent
6 Seiten
dc.rights.uri
http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen
dc.subject
parametric amplification
en
dc.subject
thermomechanical squeezing
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.title
Motion transduction with thermo-mechanically squeezed graphene resonator modes
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.1021/acs.nanolett.8b02293
dcterms.bibliographicCitation.journaltitle
Nano letters
dcterms.bibliographicCitation.number
11
dcterms.bibliographicCitation.pagestart
6719
dcterms.bibliographicCitation.pageend
6724
dcterms.bibliographicCitation.volume
18
dcterms.bibliographicCitation.url
https://doi.org/10.1021/acs.nanolett.8b02293
refubium.affiliation
Physik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
1530-6984
dcterms.isPartOf.eissn
1530-6992