Aufgrund von Vorbereitungen auf eine neue Version von KOPS, können derzeit keine Publikationen eingereicht werden. (Due to preparations for a new version of KOPS, no publications can be submitted currently.)
Type of Publication: | Journal article |
Publication status: | Published |
Author: | Schnoering, Gabriel; Rosales-Cabara, Yoseline; Wendehenne, Hugo; Canaguier-Durand, Antoine; Genet, Cyriaque |
Year of publication: | 2019 |
Published in: | Physical Review Applied ; 11 (2019), 3. - 034023. - eISSN 2331-7019 |
ArXiv-ID: | arXiv:1901.08284 |
DOI (citable link): | https://dx.doi.org/10.1103/PhysRevApplied.11.034023 |
Summary: |
We propose and evaluate a new type of optical force microscope based on a standing-wave optical trap. Our microscope, calibrated in situ and operating in a dynamic mode, is able to trap, without heating, a single metallic nanoparticle of 150 nm that acts as a highly sensitive probe for external radiation pressure. An Allan-deviation-based stability analysis of the setup yields an optimal 0.1-Hz measurement bandwidth over which the microscope is thermally limited. Over this bandwidth, and with a genuine sine-wave external drive, we demonstrate an optical force resolution down to 3 fN in water at room temperature with a dynamical range for force detection that covers almost 2 orders of magnitude. This resolution is reached in both the confined regime and the freely diffusing regime of the optical trap. In the latter, we measure induced displacements of 10−11 m on the trapped nanoparticle spatially confined within less than 25 nm along the optical axis.
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Subject (DDC): | 530 Physics |
Bibliography of Konstanz: | Yes |
Refereed: | Yes |
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SCHNOERING, Gabriel, Yoseline ROSALES-CABARA, Hugo WENDEHENNE, Antoine CANAGUIER-DURAND, Cyriaque GENET, 2019. Thermally Limited Force Microscopy on Optically Trapped Single Metallic Nanoparticles. In: Physical Review Applied. 11(3), 034023. eISSN 2331-7019. Available under: doi: 10.1103/PhysRevApplied.11.034023
@article{Schnoering2019Therm-45607, title={Thermally Limited Force Microscopy on Optically Trapped Single Metallic Nanoparticles}, year={2019}, doi={10.1103/PhysRevApplied.11.034023}, number={3}, volume={11}, journal={Physical Review Applied}, author={Schnoering, Gabriel and Rosales-Cabara, Yoseline and Wendehenne, Hugo and Canaguier-Durand, Antoine and Genet, Cyriaque}, note={Article Number: 034023} }