학술논문

Single photon emission in the telecom C-band from nanowire-based quantum dots.
Document Type
Article
Source
Applied Physics Letters. 1/22/2024, Vol. 124 Issue 4, p1-4. 4p.
Subject
*PHOTON emission
*QUANTUM dots
*NANOWIRES
*TELECOMMUNICATION
*QUANTUM communication
*PHOTONS
*COMMUNICATION of technical information
Language
ISSN
0003-6951
Abstract
Single photon sources operating on-demand at telecom wavelengths are required in fiber-based quantum secure communication technologies. In this work, we demonstrate single photon emission from position-controlled nanowire quantum dots emitting at λ > 1530 nm. Emission in the C-band is achieved by composition engineering of an InAsxP1−x dot-in-a-rod structure. Using above-band pulsed excitation, we obtain single photon purities of g (2) (0) = 0.062. These results represent an important step toward the scalable manufacture of high efficiency, high rate single photon emitters in the telecom C-band. [ABSTRACT FROM AUTHOR]