Ultrasensitive nano-optomechanical force sensor operated at dilution temperatures
| Autor: | Benjamin Pigeau, Benjamin Besga, Antoine Reigue, Wolfgang Wernsdorfer, Eric Eyraud, Laure Mercier de Lépinay, O. Arcizet, Philip Heringlake, Clement Gouriou, Francesco Fogliano |
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| Přispěvatelé: | Nano-Optique et Forces (NOF), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Ingénierie Expérimentale (ExpE), Circuits électroniques quantiques Alpes (QuantECA) |
| Rok vydání: | 2021 |
| Předmět: |
Photon
Materials science Physics::Instrumentation and Detectors Science Nanowire Physics::Optics General Physics and Astronomy 02 engineering and technology 01 natural sciences Article General Biochemistry Genetics and Molecular Biology Condensed Matter::Materials Science chemistry.chemical_compound Nanosensor 0103 physical sciences Silicon carbide nano-optomechanics Dilution refrigerator [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] 010306 general physics Nanophotonics and plasmonics Multidisciplinary business.industry Oscillation Astrophysics::Instrumentation and Methods for Astrophysics General Chemistry Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 021001 nanoscience & nanotechnology Thermal conduction Photon counting Nanosensors chemistry Optoelectronics dilution refrigerator force sensors 0210 nano-technology business |
| Zdroj: | Nature Communications Nature Communications, Vol 12, Iss 1, Pp 1-8 (2021) Nature Communications, Nature Publishing Group, 2021, 12, pp.4124. ⟨10.1038/s41467-021-24318-y⟩ |
| ISSN: | 2041-1723 |
| Popis: | Cooling down nanomechanical force probes is a generic strategy to enhance their sensitivities through the concomitant reduction of their thermal noise and mechanical damping rates. However, heat conduction becomes less efficient at low temperatures, which renders difficult to ensure and verify their proper thermalization. Here we implement optomechanical readout techniques operating in the photon counting regime to probe the dynamics of suspended silicon carbide nanowires in a dilution refrigerator. Readout of their vibrations is realized with sub-picowatt optical powers, in a situation where less than one photon is collected per oscillation period. We demonstrate their thermalization down to 32 ± 2 mK, reaching very large sensitivities for scanning probe force sensors, 40 zN Hz−1/2, with a sensitivity to lateral force field gradients in the fN m−1 range. This opens the road toward explorations of the mechanical and thermal conduction properties of nanoresonators at minimal excitation level, and to nanomechanical vectorial imaging of faint forces at dilution temperatures. Optical readout techniques for nanomechanical force probes usually generate more heat than what can be dissipated through the nanoresonators. Here, the authors use an interferometric readout scheme, achieving large force sensitivity using suspended silicon carbide nanowires at dilution temperatures. |
| Databáze: | OpenAIRE |
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