Ring cavity nano-wire electric injection single-photon source device

Abstract

The invention discloses a ring cavity nano-wire electric injection single-photon source device. The ring cavity nano-wire electric injection single-photon source device is characterized by comprising a p type electrode, a pin nano-wire, a quantum dot embedded into the nano-wire, a multilayer concentric ring cavity, an n type electrode, an n type material and a substrate. The device has the advantages that while electric injection work is achieved, an annular Bragg micro-cavity composed of multilayer concentric rings is utilized, an electromagnetic field is generated at the concentric quantum dot position, and the local area is enhanced; the radiation efficiency of a quantum dot single-photon source can be enhanced through a Purcell effect, divergence of photons can be limited in two spatial dimensions vertical to the nano-wire, the single photons can be emitted only in the nano-wire direction, the single photons are easily coupled with optical fibers, and the light collecting and utilizing efficiency is greatly improved. The ring cavity nano-wire electric injection single-photon-source device can be widely applied to quantum information, quantum computing, quantum authentication and quantum precision measurement relevant fields.

Description

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AI Technical Summary

Benefits of technology

The present technology allows for efficient emission of particles called quantum dots (QDS) by injecting them into an optoacoustic waveguide or other type of structure through electric fields. This helps create high brightness sources without being affected by external factors like temperature changes or vibrations. Additionally, this technology has potential applications such as generating individualized images on demand at different wavelengths levels within specific spectral ranges.

Problems solved by technology

This patents discusses different ways how to enhance the performance (efficiency) of generating singly charged particles called quantum dods during certain types of experiments like laser scanning fluorescein analysis. These techniques involve placing quantum dodes into specific areas within a microscope chamber where they actively produce signals while minimizing unwanted side effects caused by ambient radiation. Additionally, these methods aim at enhancing the ability to generate highly pure mono phosphorus diode lights (MPDLs), which have applications beyond electronic security systems.

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