| Full text | |
| Author(s): |
Luiz, Gustavo O.
[1]
;
Benevides, Rodrigo S.
[1]
;
Santos, Felipe G. S.
[1]
;
Espinel, Yovanny A. V.
[1]
;
Mayer Alegre, Thiago P.
[1]
;
Wiederhecker, Gustavo S.
[1]
Total Authors: 6
|
| Affiliation: | [1] Univ Estadual Campinas, UNICAMP, Appl Phys Dept, Gleb Wataghin Phys Inst, BR-13083859 Campinas, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | Optics Express; v. 25, n. 25, p. 31347-31361, DEC 11 2017. |
| Web of Science Citations: | 4 |
| Abstract | |
Elastic dissipation through radiation towards the substrate is a major loss channel in micro-and nanomechanical resonators. Engineering the coupling of these resonators with optical cavities further complicates and constrains the design of low-loss optomechanical devices. In this work we rely on the coherent cancellation of mechanical radiation to demonstrate material and surface absorption limited silicon near-field optomechanical resonators oscillating at tens of MHz. The effectiveness of our dissipation suppression scheme is investigated at room and cryogenic temperatures. While at room temperature we can reach a maximum quality factor of 7.61k (fQ-product of the order of 10(11) Hz), at 22 K the quality factor increases to 37k, resulting in a fQ-product of 2 x 10(12) Hz. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement (AU) | |
| FAPESP's process: | 08/57857-2 - Photonics for optical communications |
| Grantee: | Hugo Luis Fragnito |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 12/17765-7 - Nanophotonics in Group IV and III-V semiconductors |
| Grantee: | Gustavo Silva Wiederhecker |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 12/17610-3 - Optomechanics in photonic and phononic crystals |
| Grantee: | Thiago Pedro Mayer Alegre |
| Support Opportunities: | Research Grants - Young Investigators Grants |