Electrically-Pumped Wavelength-Tunable GaAs Quantum Dots Interfaced with Rubidium Atoms
Sprache des Titels:
We demonstrate the first wavelength-tunable electrically
pumped source of nonclassical light that can emit photons with
wavelength in resonance with the D2 transitions of 87Rb atoms. The
device is fabricated by integrating a novel GaAs single-quantum-dot
light-emitting diode (LED) onto a piezoelectric actuator. By feeding
the emitted photons into a 75 mm long cell containing warm 87Rb
vapor, we observe slow-light with a temporal delay of up to 3.4 ns.
In view of the possibility of using 87Rb atomic vapors as quantum
memories, this work makes an important step toward the realization
of hybrid-quantum systems for future quantum networks.