A hybrid (Al)GaAs-LiNbO3 surface acoustic wave resonator for cavity quantum dot optomechanics
Emeline D. S. Nysten, Armando Rastelli, Hubert J. Krenner
Abstract
A hybrid device comprising a (Al)GaAs quantum dot heterostructure and a LiNbO3 surface acoustic wave resonator is fabricated by heterointegration. High acoustic quality factors Q>4000 are demonstrated for an operation frequency f≈300 MHz. The measured large quality factor-frequency products Q×f>1012 ensure the suppression of decoherence due to thermal noise for temperatures exceeding T>50 K. Frequency and position dependent optomechanical coupling of single quantum dots and resonator modes is observed.
Topics & Concepts
OptomechanicsResonatorQuantum dotSurface acoustic waveOptoelectronicsPhysicsNoise (video)Quality (philosophy)Quantum decoherenceCoupling (piping)Acoustic waveSurface acoustic wave sensorMaterials scienceQ factorPhononQuantum dot laserOpticsHeterojunctionQuantumThermalPosition (finance)Quantum opticsPhase noiseOptical cavityJohnson–Nyquist noiseSurface waveQuantum noiseMechanical and Optical ResonatorsAcoustic Wave Resonator TechnologiesAcoustic Wave Phenomena Research