Brillouin Optomechanics in Coupled Silicon Microcavities

Autor(es)

Espinel, Y. A. V. ; Santos, F. G. S. ; Luiz, G. O. ; Mayer Alegre, T. P. ; Wiederhecker, G. S.

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 7, MAR 6 2017.
• Citações Web of Science: 9

Resumo

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)

• Processo FAPESP: 12/17765-7 - Nanofotônica em semicondutores do Grupo IV e III-V
• Beneficiário: Gustavo Silva Wiederhecker
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 12/17610-3 - Optomecânica em cristais fotônicos e fonônicos
• Beneficiário: Thiago Pedro Mayer Alegre
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores