| Autor: |
M J, Bereyhi, A, Beccari, R, Groth, S A, Fedorov, A, Arabmoheghi, T J, Kippenberg, N J, Engelsen |
| Rok vydání: |
2021 |
| Zdroj: |
Nature communications. 13(1) |
| ISSN: |
2041-1723 |
| Popis: |
Structural hierarchy is found in myriad biological systems and has improved man-made structures ranging from the Eiffel tower to optical cavities. In mechanical resonators whose rigidity is provided by static tension, structural hierarchy can reduce the dissipation of the fundamental mode to ultralow levels due to an unconventional form of soft clamping. Here, we apply hierarchical design to silicon nitride nanomechanical resonators and realize binary tree-shaped resonators with room temperature quality factors as high as 7.8 × 10 |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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