Single-photon light emitting diodes based on pre-selected quantum dots using a deterministic lithography technique
arXiv:1902.01180 · doi:10.1063/1.5091751
Abstract
In the present study, we developed a fabrication process of an electrically driven single-photon LED based on InP QDs emitting in the red spectral range, the wavelength of interest coinciding with the high efficiency window of Si APDs. A deterministic lithography technique allowed for the pre-selection of a suitable QD, here exclusively operated under electrical carrier injection. The final device was characterized under micro-electroluminescence in direct current, as well as in pulsed excitation mode. In particular, under pulsed excitation of one device, single-photon emission of a spectral line, identified as an exciton, has been observed with , where the non-zero -value is mainly caused by background contribution in the spectrum and re-excitation processes due to the electrical pulse length. The obtained results constitute an important step forward in the fabrication of electrically driven single-photon sources, where deterministic lithography techniques can be used to sensibly improve the device performances. In principle, the developed process can be extended to any desired emitter wavelength above up to the telecom bands.
References in corpus (15)
- Photonic quantum technologies
- Near optimal single photon sources in the solid state
- On-Demand Single Photons with High Extraction Efficiency and Near-Unity Indistinguishability from a Resonantly Driven Quantum Dot in a Micropillar
- Photon antibunching in the fluorescence of individual color centers in diamond
- Bright single-photon sources in bottom-up tailored nanowires
- Controlled light-matter coupling for a single quantum dot embedded in a pillar microcavity using far-field optical lithography
- Enhanced photon-extraction efficiency from deterministic quantum-dot microlenses
- Strain-Tunable GaAs Quantum dot: A Nearly Dephasing-Free Source of Entangled Photon Pairs on Demand
- Highly indistinguishable on-demand resonance fluorescence photons from a deterministic quantum dot micropillar device with 75 extraction efficiency
- A quantum light emitting diode for the standard telecom window around 1550 nm
- The photonic trumpet: An efficient, broadband interface between a solid-state quantum emitter and a Gaussian beam
- Strain-tunable entangled-light-emitting diodes with high yield and fast operation speed
- Cryogenic photoluminescence imaging system for nanoscale positioning of single quantum emitters
- Bright single photon emission from a quantum dot in a circular Bragg grating microcavity
- Metallic nanorings for broadband, enhanced extraction of light from solid-state emitters