| Full text | |
| Author(s): |
Espinel, Y. A. V.
;
Santos, F. G. S.
;
Luiz, G. O.
;
Mayer Alegre, T. P.
;
Wiederhecker, G. S.
Total Authors: 5
|
| Document type: | Journal article |
| Source: | SCIENTIFIC REPORTS; v. 7, MAR 6 2017. |
| Web of Science Citations: | 9 |
| Abstract | |
The simultaneous control of optical and mechanical waves has enabled a range of fundamental and technological breakthroughs, from the demonstration of ultra-stable frequency reference devices, to the exploration of the quantum-classical boundaries in optomechanical laser-cooling experiments. More recently, such an optomechanical interaction has been observed in integrated nano-waveguides and microcavities in the Brillouin regime, where short-wavelength mechanical modes scatter light at several GHz. Here we engineer coupled optical microcavities to enable a low threshold excitation of mechanical travelling-wave modes through backward stimulated Brillouin scattering. Exploring the backward scattering we propose silicon microcavity designs based on laterally coupled single and double-layer cavities, the proposed structures enable optomechanical coupling with very high frequency modes (11 to 25 GHz) and large optomechanical coupling rates (g(0)/2 pi) from 50 kHz to 90 kHz. (AU) | |
| 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 |