Enhanced single photon emission from positioned InP/GaInP quantum dots coupled to a confined Tamm-plasmon mode
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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 similar 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%.
Braun , T , Baumann , V , Iff , O , Hoefling , S , Schneider , C & Kamp , M 2015 , ' Enhanced single photon emission from positioned InP/GaInP quantum dots coupled to a confined Tamm-plasmon mode ' , Applied Physics Letters , vol. 106 , no. 4 , 041113 . https://doi.org/10.1063/1.4907003
Applied Physics Letters
Copyright 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in: Braun, T., Baumann, V., Iff, O., Hoefling, S., Schneider, C., & Kamp, M. (2015). Enhanced single photon emission from positioned InP/GaInP quantum dots coupled to a confined Tamm-plasmon mode. Applied Physics Letters, 106(4), . The article may be found at and may be found at http://scitation.aip.org/content/aip/journal/apl/106/4/10.1063/1.4907003
DescriptionThis work was financially supported by the EU within the project “SPANGL4Q” (Grant No. 284743). Date of Acceptance: 19/01/2015
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