Casimir force and in situ surface potential measurements on nanomembranes.
We present Casimir force measurements in a sphere-plate configuration that consists of a high quality nanomembrane resonator and a millimeter sized gold coated sphere. The nanomembrane is fabricated from stoichiometric silicon nitride metallized with gold. A Kelvin probe method is used in situ to im...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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2012
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| _version_ | 1797088131075276800 |
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| author | Garcia-Sanchez, D Fong, K Bhaskaran, H Lamoreaux, S Tang, H |
| author_facet | Garcia-Sanchez, D Fong, K Bhaskaran, H Lamoreaux, S Tang, H |
| author_sort | Garcia-Sanchez, D |
| collection | OXFORD |
| description | We present Casimir force measurements in a sphere-plate configuration that consists of a high quality nanomembrane resonator and a millimeter sized gold coated sphere. The nanomembrane is fabricated from stoichiometric silicon nitride metallized with gold. A Kelvin probe method is used in situ to image the surface potentials to minimize the distance-dependent residual force. Resonance-enhanced frequency-domain measurements of the nanomembrane motion allow for very high resolution measurements of the Casimir force gradient (down to a force gradient sensitivity of 3 μN/m). Using this technique, the Casimir force in the range of 100 nm to 2 μm is accurately measured. Experimental data thus obtained indicate that the device system in the measured range is best described with the Drude model. |
| first_indexed | 2024-03-07T02:45:32Z |
| format | Journal article |
| id | oxford-uuid:abf129df-cb9b-4e85-9b14-ccb42cc52ad2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:45:32Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:abf129df-cb9b-4e85-9b14-ccb42cc52ad22022-03-27T03:25:18ZCasimir force and in situ surface potential measurements on nanomembranes.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:abf129df-cb9b-4e85-9b14-ccb42cc52ad2EnglishSymplectic Elements at Oxford2012Garcia-Sanchez, DFong, KBhaskaran, HLamoreaux, STang, HWe present Casimir force measurements in a sphere-plate configuration that consists of a high quality nanomembrane resonator and a millimeter sized gold coated sphere. The nanomembrane is fabricated from stoichiometric silicon nitride metallized with gold. A Kelvin probe method is used in situ to image the surface potentials to minimize the distance-dependent residual force. Resonance-enhanced frequency-domain measurements of the nanomembrane motion allow for very high resolution measurements of the Casimir force gradient (down to a force gradient sensitivity of 3 μN/m). Using this technique, the Casimir force in the range of 100 nm to 2 μm is accurately measured. Experimental data thus obtained indicate that the device system in the measured range is best described with the Drude model. |
| spellingShingle | Garcia-Sanchez, D Fong, K Bhaskaran, H Lamoreaux, S Tang, H Casimir force and in situ surface potential measurements on nanomembranes. |
| title | Casimir force and in situ surface potential measurements on nanomembranes. |
| title_full | Casimir force and in situ surface potential measurements on nanomembranes. |
| title_fullStr | Casimir force and in situ surface potential measurements on nanomembranes. |
| title_full_unstemmed | Casimir force and in situ surface potential measurements on nanomembranes. |
| title_short | Casimir force and in situ surface potential measurements on nanomembranes. |
| title_sort | casimir force and in situ surface potential measurements on nanomembranes |
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