Dresden 2014 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 98: Transport: Nanomechanics

TT 98.4: Vortrag

Donnerstag, 3. April 2014, 15:45–16:00, BEY 81

Optomechanical Metamaterials: Dirac polaritons, Gauge fields, and Instabilities — •Vittorio Peano, Michael Schmidt Schmidt, and Florian Marquardt — Friedrich Alexander Universität Erlangen

Freestanding photonic crystals can be used to trap both light and mechanical vibrations. These "optomechanical crystal" structures have already been experimentally demonstrated to yield strong coupling between a photon mode and a phonon mode, co-localized at a single defect site. Future devices may feature a regular superlattice of such defects, turning them into "optomechanical arrays". We predict that tailoring the optomechanical band structure of such arrays can be used to implement Dirac physics of photons and phonons, to create a photonic gauge field via mechanical vibrations, and to observe a novel optomechanical instability.