Abstract
We report a strain-tunable quantum light-emitting diode for generation of electrically triggered and energy-tunable single photons. The device consists of a p-i-n quantum dots containing nanomembrane integrated onto a piezoelectric actuator. By injecting ultrafast voltage pulses, electrically driven light emission is realized and the quantum nature of single-photon emission is revealed in the second-order time correlation measurements. In addition to electrically pulsed excitation, we achieved a broad tuning range ( $${\sim }$$ 9 meV) to the energy of the emitted single photons by imposing giant biaxial strain fields on quantum dots within the diode. We further show that energy of the single-photon emission emitted from different quantum dots can be tuned to degeneracy, thus rendering the quantum interference on which most of existing photonic quantum technologies rely. The device reported in this work represents an important step toward the realization of quantum repeater by using electrically triggered quantum light sources of indistinguishable photons.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
