| DOI | Resolve DOI: https://doi.org/10.1103/PhysRevX.4.021052 |
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| Author | Search for: Wu, Marcelo1; Search for: Hryciw, Aaron C.1; Search for: Healey, Chris1; Search for: Lake, David P.; Search for: Jayakumar, Harishankar; Search for: Freeman, Mark R.1; Search for: Davis, John P.1; Search for: Barclay, Paul E.1 |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
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| Format | Text, Article |
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| Subject | Physics; Ambient conditions; Coupling mechanism; Detection sensitivity; Dissipative coupling; Limited torques; Measurements of; Mechanical resonance; Wavelength response; Dispersion (waves) |
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| Abstract | Dissipative and dispersive optomechanical couplings are experimentally observed in a photonic crystal split-beam nanocavity optimized for detecting nanoscale sources of torque. Dissipative coupling of up to approximately 500 MHz/nm and dispersive coupling of 2 GHz/nm enable measurements of sub-pg torsional and cantileverlike mechanical resonances with a thermally limited torque detection sensitivity of 1.2 × 10-20 Nm/√Hz in ambient conditions and 1.3 × 10-21 Nm=/√Hz in low vacuum. Interference between optomechanical coupling mechanisms is observed to enhance detection sensitivity and generate a mechanical-mode-dependent optomechanical wavelength response. |
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| Publication date | 2014-06-19 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21274107 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 94e519b5-fe2a-43e5-aad1-d8d199ed0826 |
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| Record created | 2015-02-13 |
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| Record modified | 2020-04-22 |
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