6533b860fe1ef96bd12c37db

RESEARCH PRODUCT

Acoustically tunable photonic structures based on microcavity polaritons

Rudolf HeyAndrés CantareroJ. CamachoPaulo V. SantosM. M. De Lima

subject

Condensed Matter::Quantum GasesPhysicsCondensed matter physicsCondensed Matter::Otherbusiness.industryExcitonSuperlatticePhysics::OpticsAcoustic waveCondensed Matter::Mesoscopic Systems and Quantum Hall EffectCondensed Matter PhysicsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.inventionCondensed Matter::Materials SciencelawOptical cavityPolaritonOptoelectronicsPhotonicsbusinessElectronic band structurePhotonic crystal

description

Abstract The interaction between surface acoustic waves (SAWs) with (Al,Ga)As microcavity polaritons results in the formation of a dynamic optical superlattice with folded light dispersion and energy stop bands when the lower polariton branch is predominantly of photonic character. For small detunings between the excitonic and optical cavity resonances, the SAW bleaches the polariton resonances through the efficient dissociation of the excitons by its piezoelectric field.

https://doi.org/10.1016/j.physe.2005.12.141