Active control of radiation beaming from Tamm nanostructures by optical microscopy

Fu Feng,Agnès Maître,Laurent Coolen,Jean-Paul Hugonin,Joël Bellessa,Catherine Schwob,Clémentine Symonds

doi:10.1088/1367-2630/aaaf93

Abstract

Active control of the radiation orientation (beaming) of a metallic antenna has been reported by various methods, where the antenna excitation position was tuned with a typical 50 nm precision by a near-field tip or an electron-beam. Here we use optical microscopy to excite and analyze the fluorescence of a layer of nanocrystals embedded in an optical Tamm state nanostructure (metallic disk on top of a Bragg mirror). We show that the radiation pattern can be controlled by changing the excitation spot on the disk with only micrometer precision, in a manner which can be well described by numerical simulations. A simplified analytical model suggests that the propagation length of the in-plane confined optical modes is a key parameter for beaming control.

Highlights

To cite this version: Fu Feng, Clémentine Symonds, Catherine Schwob, Joël Bellessa, Agnès Maitre, et al
Active control of radiation beaming from Tamm nanostructures by optical microscopy To cite this article: Fu Feng et al 2018 New J
Unlike the antennas discussed above, for Tamm structures the level of position control required is of the order of 1 μm, so that active control of the emission pattern is obtained by optical microscopy rather than near-field methods

Summary

Introduction

To cite this version: Fu Feng, Clémentine Symonds, Catherine Schwob, Joël Bellessa, Agnès Maitre, et al. Active control of radiation beaming from Tamm nanostructures by optical microscopy To cite this article: Fu Feng et al 2018 New J.

Results

Conclusion