2024-03-29T15:37:03Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1325902016-06-28T01:20:42Zcom_10261_36com_10261_4col_10261_289
2016-05-24T12:16:21Z
urn:hdl:10261/132590
Non-linear mixing in coupled photonic crystal nanobeam cavities due to cross-coupling opto-mechanical mechanisms
Ramos Vega, Daniel
Frank, Ian W.
Deotare, Parag B.
Bulu, Irfan
Lončar, Marko
European Commission
© 2014 AIP Publishing LLC. We investigate the coupling between mechanical and optical modes supported by coupled, freestanding, photonic crystal nanobeam cavities. We show that localized cavity modes for a given gap between the nanobeams provide weak optomechanical coupling with out-of-plane mechanical modes. However, we show that the coupling can be significantly increased, more than an order of magnitude for the symmetric mechanical mode, due to optical resonances that arise from the interaction of the localized cavity modes with standing waves formed by the reflection from thesubstrate. Finally, amplification of motion for the symmetric mode has been observed and attributed to the strong optomechanical interaction of our hybrid system. The amplitude of these self-sustained oscillations is large enough to put the system into a non-linear oscillation regime where a mixing between the mechanical modes is experimentally observed and theoretically explained.
2016-05-24T12:16:21Z
2016-05-24T12:16:21Z
2014
2016-05-24T12:16:21Z
artículo
Applied Physics Letters 105: 181121 (2014)
http://hdl.handle.net/10261/132590
10.1063/1.4901441
http://dx.doi.org/10.13039/501100000780
eng
Publisher's version
http://dx.doi.org/10.1063/1.4901441
Sí
openAccess
American Institute of Physics