Details
| Original language | English |
|---|---|
| Pages (from-to) | 6711-6715 |
| Number of pages | 5 |
| Journal | Nano letters |
| Volume | 19 |
| Issue number | 10 |
| Publication status | Published - 9 Oct 2019 |
| Externally published | Yes |
Abstract
Nanomechanical resonators are widely operated as force and mass sensors with sensitivities in the zepto-Newton (10-21) and yocto-gram (10-24) regime, respectively. Their accuracy, however, is usually undermined by high uncertainties in the effective mass of the system, whose estimation is a nontrivial task. This critical issue can be addressed in levitodynamics, where the nanoresonator typically consists of a single silica nanoparticle of well-defined mass. Yet, current methods assess the mass of the levitated nanoparticles with uncertainties up to a few tens of percent, therefore preventing to achieve unprecedented sensing performances. Here, we present a novel measurement protocol that uses the electric field from a surrounding plate capacitor to directly drive a charged optically levitated particle in moderate vacuum. The developed technique estimates the mass within a statistical error below 1% and a systematic error of ∼2%, and paves the way toward more reliable sensing and metrology applications of levitodynamics systems.
Keywords
- force sensing, levitation optomechanics, mechanical resonators, optical levitodynamics, vacuum
ASJC Scopus subject areas
- Chemical Engineering(all)
- Bioengineering
- Chemistry(all)
- General Chemistry
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanical Engineering
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In: Nano letters, Vol. 19, No. 10, 09.10.2019, p. 6711-6715.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Accurate Mass Measurement of a Levitated Nanomechanical Resonator for Precision Force-Sensing
AU - Ricci, F.
AU - Cuairan, M. T.
AU - Conangla, G. P.
AU - Schell, A. W.
AU - Quidant, R.
PY - 2019/10/9
Y1 - 2019/10/9
N2 - Nanomechanical resonators are widely operated as force and mass sensors with sensitivities in the zepto-Newton (10-21) and yocto-gram (10-24) regime, respectively. Their accuracy, however, is usually undermined by high uncertainties in the effective mass of the system, whose estimation is a nontrivial task. This critical issue can be addressed in levitodynamics, where the nanoresonator typically consists of a single silica nanoparticle of well-defined mass. Yet, current methods assess the mass of the levitated nanoparticles with uncertainties up to a few tens of percent, therefore preventing to achieve unprecedented sensing performances. Here, we present a novel measurement protocol that uses the electric field from a surrounding plate capacitor to directly drive a charged optically levitated particle in moderate vacuum. The developed technique estimates the mass within a statistical error below 1% and a systematic error of ∼2%, and paves the way toward more reliable sensing and metrology applications of levitodynamics systems.
AB - Nanomechanical resonators are widely operated as force and mass sensors with sensitivities in the zepto-Newton (10-21) and yocto-gram (10-24) regime, respectively. Their accuracy, however, is usually undermined by high uncertainties in the effective mass of the system, whose estimation is a nontrivial task. This critical issue can be addressed in levitodynamics, where the nanoresonator typically consists of a single silica nanoparticle of well-defined mass. Yet, current methods assess the mass of the levitated nanoparticles with uncertainties up to a few tens of percent, therefore preventing to achieve unprecedented sensing performances. Here, we present a novel measurement protocol that uses the electric field from a surrounding plate capacitor to directly drive a charged optically levitated particle in moderate vacuum. The developed technique estimates the mass within a statistical error below 1% and a systematic error of ∼2%, and paves the way toward more reliable sensing and metrology applications of levitodynamics systems.
KW - force sensing
KW - levitation optomechanics
KW - mechanical resonators
KW - optical levitodynamics
KW - vacuum
UR - http://www.scopus.com/inward/record.url?scp=85064168365&partnerID=8YFLogxK
U2 - 10.1021/acs.nanolett.9b00082
DO - 10.1021/acs.nanolett.9b00082
M3 - Article
C2 - 30888180
AN - SCOPUS:85064168365
VL - 19
SP - 6711
EP - 6715
JO - Nano letters
JF - Nano letters
SN - 1530-6984
IS - 10
ER -