Rights:
© 2014 American Physical Society (APS). This is the accepted version of the following article: Heikkilä, T. T. & Massel, F. & Tuorila, J. & Khan, R. & Sillanpää, Mika A. 2014. Enhancing Optomechanical Coupling via the Josephson Effect. Physical Review Letters. Volume 112, Issue 20. 203603/1-6. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.112.20360, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.203603.