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dc.contributor.authorRamos Vega, Daniel-
dc.contributor.authorFrank, Ian W.-
dc.contributor.authorDeotare, Parag B.-
dc.contributor.authorBulu, Irfan-
dc.contributor.authorLončar, Marko-
dc.identifierissn: 0003-6951-
dc.identifiere-issn: 1077-3118-
dc.identifier.citationApplied Physics Letters 105: 181121 (2014)-
dc.description.abstract© 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.-
dc.description.sponsorshipD.R. acknowledges financial support from the EU Grant Marie Curie IOF-2009-254996. This work was supported in part by NSF CAREER award.-
dc.publisherAmerican Institute of Physics-
dc.relation.isversionofPublisher's version-
dc.titleNon-linear mixing in coupled photonic crystal nanobeam cavities due to cross-coupling opto-mechanical mechanisms-
dc.description.versionPeer Reviewed-
dc.contributor.funderEuropean Commission-
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