A circular dielectric grating for vertical extraction of single quantum dot emission

URN to cite this document:: urn:nbn:de:bvb:355-epub-220803
DOI to cite this document:: 10.5283/epub.22080

Davanço, M. ; Rakher, M. T. ; Schuh, Dieter ; Badolato, A. ; Srinivasan, K.

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Date of publication of this fulltext: 07 Sep 2011 08:17

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Abstract

We demonstrate a nanostructure composed of partially etched annular trenches in a suspended GaAs membrane, designed for efficient and moderately broadband (≈5 nm) emission extraction from single InAs quantum dots. Simulations indicate that a dipole embedded in the nanostructure center radiates upward into free space with a nearly Gaussian far field, allowing a collection efficiency >80% with a ...