Near-Unity Coupling Efficiency of a Quantum Emitter to a Photonic Crystal Waveguide

Title
Near-Unity Coupling Efficiency of a Quantum Emitter to a Photonic Crystal Waveguide
Authors
M. ArcariI. SollnerA. JavadiS. Lindskov HansenS. MahmoodianJ. LiuH. ThyrrestrupE. H. Lee송진동S. StobbeP. Lodahl
Keywords
InAs; QD; Single photon source
Issue Date
2014-08
Publisher
Physical review letters
Citation
VOL 113, NO 9, 093603-1-093603-5
Abstract
A quantum emitter efficiently coupled to a nanophotonic waveguide constitutes a promising system for the realization of single-photon transistors, quantum-logic gates based on giant single-photon nonlinearities, and high bit-rate deterministic single-photon sources. The key figure of merit for such devices is the β factor, which is the probability for an emitted single photon to be channeled into a desired waveguide mode. We report on the experimental achievement of β = 98.43% ± 0.04% for a quantum dot coupled to a photonic crystal waveguide, corresponding to a single-emitter cooperativity of η = 62.7 ± 1.5 . This constitutes a nearly ideal photon-matter interface where the quantum dot acts effectively as a 1D “artificial” atom, since it interacts almost exclusively with just a single propagating optical mode. The β factor is found to be remarkably robust to variations in position and emission wavelength of the quantum dots. Our work demonstrates the extraordinary potential of photonic crystal waveguides for highly efficient single-photon generation and on-chip photon-photon interaction.
URI
http://pubs.kist.re.kr/handle/201004/48584
ISSN
00319007
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE