%0 Generic %1 hempston2017force %A Hempston, David %A Vovrosh, Jamie %A Toroš, Marko %A Rashid, Muddassar %A Ulbricht, Hendrik %D 2017 %K levitation optomechanics %T Force sensing with an optically levitated charged nanoparticle %U http://arxiv.org/abs/1706.09774 %X Levitated optomechanics is showing potential for precise force measurements. Here, we report a case study, to show experimentally the capacity of such a force sensor. Using an electric field as a tool to detect an applied Coulomb force on levitated nanosphere. We experimentally study the spatial displacement, of up to 7.1 nm, on the levitated nanosphere by imposing a DC field. We further apply an AC field and demonstrate resonant enhancement of force sensing when a driving frequency, $ømega_AC$, and the natural frequency of the levitated mechanical oscillator, $ømega_0$, converge. We directly measure a force of $3.0 1.5 10^-20$ N with 10 second integration, at room temperature and at a pressure of $1.6 10^-5$ mbar.

@misc{hempston2017force, abstract = {Levitated optomechanics is showing potential for precise force measurements. Here, we report a case study, to show experimentally the capacity of such a force sensor. Using an electric field as a tool to detect an applied Coulomb force on levitated nanosphere. We experimentally study the spatial displacement, of up to 7.1 nm, on the levitated nanosphere by imposing a DC field. We further apply an AC field and demonstrate resonant enhancement of force sensing when a driving frequency, $\omega_{AC}$, and the natural frequency of the levitated mechanical oscillator, $\omega_0$, converge. We directly measure a force of $3.0 \pm 1.5 \times 10^{-20}$ N with 10 second integration, at room temperature and at a pressure of $1.6 \times 10^{-5}$ mbar.}, added-at = {2017-07-04T12:38:36.000+0200}, author = {Hempston, David and Vovrosh, Jamie and Toroš, Marko and Rashid, Muddassar and Ulbricht, Hendrik}, biburl = {https://www.bibsonomy.org/bibtex/2393cd5333c6de82e514492b8beec7703/j.schnars}, description = {[1706.09774v2] Force sensing with an optically levitated charged nanoparticle}, interhash = {ec81e2a524a99f3210a697e71bf3d171}, intrahash = {393cd5333c6de82e514492b8beec7703}, keywords = {levitation optomechanics}, note = {cite arxiv:1706.09774Comment: 5 pages, 3 figures}, timestamp = {2017-07-04T12:38:36.000+0200}, title = {Force sensing with an optically levitated charged nanoparticle}, url = {http://arxiv.org/abs/1706.09774}, year = 2017 }