Bonding, antibonding and tunable optical forces in asymmetric membranes.

  title={Bonding, antibonding and tunable optical forces in asymmetric membranes.},
  author={Alejandro W. Rodriguez and Alexander P. McCauley and Pui-Chuen Hui and David N. Woolf and Eiji Iwase and Federico Capasso and Marko Lon{\vc}ar and Steven G. Johnson},
  journal={Optics express},
  volume={19 3},
We demonstrate that tunable attractive (bonding) and repulsive (anti-bonding) forces can arise in highly asymmetric structures coupled to external radiation, a consequence of the bonding/anti-bonding level repulsion of guided-wave resonances that was first predicted in symmetric systems. Our focus is a geometry consisting of a photonic-crystal (holey) membrane suspended above an unpatterned layered substrate, supporting planar waveguide modes that can couple via the periodic modulation of the… 

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