Enhanced single photon emission from positioned InP/GaInP quantum dots coupled to a confined Tamm-plasmon mode

Journal Article · Mon Jan 26 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4907003· OSTI ID:22415174

Braun, T.; Baumann, V.; Iff, O.; Schneider, C.; Kamp, M. ^[1]; Höfling, S. ^[1]

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1. Technische Physik, Physikalisches Institut and Wilhelm Conrad Röntgen-Research Center for Complex Material Systems, Universität Würzburg, Am Hubland, D-97074 Würzburg (Germany)

We report on the enhancement of the spontaneous emission in the visible red spectral range from site-controlled InP/GaInP quantum dots by resonant coupling to Tamm-plasmon modes confined beneath gold disks in a hybrid metal/semiconductor structure. The enhancement of the emission intensity is confirmed by spatially resolved micro-photoluminescence area scans and temperature dependent measurements. Single photon emission from our coupled system is verified via second order autocorrelation measurements. We observe bright single quantum dot emission of up to ∼173 000 detected photons per second at a repetition rate of the excitation source of 82 MHz, and calculate an extraction efficiency of our device as high as 7%.

• OSTI ID: 22415174
• Journal Information: Applied Physics Letters, Vol. 106, Issue 4; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
77 NANOSCIENCE AND NANOTECHNOLOGY
EXCITATION
GALLIUM COMPOUNDS
GOLD
INDIUM PHOSPHIDES
MHZ RANGE 01-100
PHOTOLUMINESCENCE
PHOTONS
PLASMONS
QUANTUM DOTS
SEMICONDUCTOR MATERIALS
TEMPERATURE DEPENDENCE