Indexed by: Journal paper

Journal: Phys. Rev. Lett.

Affiliation of Author(s): DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, Building 343, DK-

Place of Publication: 美国

Discipline: Engineering

Funded by: 自然科学基金

Document Type: J

Volume: 108

Issue: 7

Page Number: 077405

Key Words: 无

DOI number: 10.1103/PhysRevLett.108.077405

Date of Publication: 2012-02-17

Abstract: We introduce dielectric elliptical photonic nanowires to funnel efficiently the spontaneous emission of an embedded emitter into a single optical mode. Inside a wire with a moderate lateral aspect ratio, the electromagnetic environment is largely dominated by a single guided mode, with a linear polarization oriented along the ellipse major axis. The resulting monomode spontaneous emission is maintained over a broad wavelength range, a key asset of this 1D photonic structure. Our theoretical analysis is completed by an experimental study of GaAs elliptical photonic wires with embedded InAs quantum dots. In particular, the fraction of collected photons with the desired linear polarization can exceed 95%.

Note: 无

Links to published journals: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.108.077405