title: Modeling of optomechanical coupling in a phoxonic crystal cavity in diamond.
abstract: A photonic and phononic crystal (phoxonic crystal PxC) is a periodically patterned material that can at the same time localize optical and mechanical modes. Here we theoretically model one-dimensional PxC in diamond and find high quality mechanical resonances with very high frequencies > 10 GHz and optical properties comparable to those of PxC in other materials. The simultaneous confinement of photons and phonons leads to an optomechanical interaction that we calculate in a perturbation approach. The optomechanical coupling strengths reach values in the MHz range. We identify design rules to simultaneously achieve high optical and mechanical quality factors along with strong optomechanical coupling.
authors.forename: Laura
authors.initials: L
authors.lastname: Kipfstuhl
authors.forename: Felix
authors.initials: F
authors.lastname: Guldner
authors.forename: Janine
authors.initials: J
authors.lastname: Riedrich-Möller
authors.forename: Christoph
authors.initials: C
authors.lastname: Becher