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

T. Braun*, V. Baumann, O. Iff, S. Hoefling, C. Schneider, M. Kamp

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)
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Abstract

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%.

Original languageEnglish
Article number041113
Number of pages5
JournalApplied Physics Letters
Volume106
Issue number4
DOIs
Publication statusPublished - 26 Jan 2015

Keywords

  • temperature-dependence
  • Device

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