| Full text | |
| Author(s): |
Santos, Felipe G. S.
;
Espinel, Yovanny A. V.
;
Luiz, Gustavo O.
;
Benevides, Rodrigo S.
;
Wiederhecker, Gustavo S.
;
Mayer Alegre, Thiago P.
Total Authors: 6
|
| Document type: | Journal article |
| Source: | Optics Express; v. 25, n. 2, p. 508-529, JAN 23 2017. |
| Web of Science Citations: | 5 |
| Abstract | |
Optomechanical cavities have proven to be an exceptional tool to explore fundamental and applied aspects of the interaction between mechanical and optical waves. Here we demonstrate a novel optomechanical cavity based on a disk with a radial mechanical bandgap. This design confines light and mechanical waves through distinct physical mechanisms which allows for independent control of the mechanical and optical properties. Simulations foresee an optomechanical coupling rate g(0) reaching 2 pi x 100 kHz for mechanical frequencies around 5 GHz as well as anchor loss suppression of 60 dB. Our device design is not limited by unique material properties and could be easily adapted to allow for large optomechanical coupling and high mechanical quality factors with other promising materials. Finally, our devices were fabricated in a commercial silicon photonics facility, demonstrating g(0)/2 pi = 23 kHz for mechanical modes with frequencies around 2 GHz and mechanical Q-factors as high as 2300 at room temperature, also showing that our approach can be easily scalable and useful as a new platform for multimode optomechanics. (C) 2017 Optical Society of America (AU) | |
| FAPESP's process: | 13/06360-9 - Optomechanical Cavities |
| Grantee: | Felipe Gustavo da Silva Santos |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| 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 |