Coupling of single quantum dots to photonic crystal cavities investigated by low-temperature scanning near-field optical microscopy

Matthias Skacel, Francesco Pagliano, Thang Hoang, Leonardo Midolo, Sartoon Fattahpoor, Lianhe Li, Edmund H. Linfield, and Andrea Fiore

Phys. Rev. B 88, 035416 – Published 10 July 2013

Abstract

We report a study of single quantum dots inside photonic crystal cavities with a low-temperature scanning near-field optical microscope. The spatial maps of single excitonic lines from the quantum dot show the clear signature of coupling to the cavity modes for small detunings. We also show that the near-field tip can be used to control the exciton-photon coupling at the nanoscale. A general framework for the interpretation of near-field maps of single emitters in cavities is proposed.

Received 18 January 2013

DOI:https://doi.org/10.1103/PhysRevB.88.035416

Authors & Affiliations

Matthias Skacel¹, Francesco Pagliano^1,*, Thang Hoang¹, Leonardo Midolo¹, Sartoon Fattahpoor¹, Lianhe Li², Edmund H. Linfield², and Andrea Fiore¹

¹COBRA Research Institute, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
²School of Electronic and Electrical Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom

^*f.m.pagliano@tue.nl

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Vol. 88, Iss. 3 — 15 July 2013

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