A spectrally-tunable quantum light sources is presented, which consitst of a quantum-dot integrated into a microlens that is bonded onto a piezoelectric actuator. The device and lens geometry were optimized using JCMsuite.
M. Schmidt, et al. Deterministically fabricated spectrally-tunable quantum dot based single-photon source. Optical Materials Express, 10.1, 76 (2020).