Nuttall, LP;
Brossard, FSF;
Lennon, SA;
Reid, BPL;
Wu, J;
Griffiths, J;
Taylor, RA;
(2017)
Optical fabrication and characterisation of SU-8 disk photonic waveguide heterostructure cavities.
Optics Express
, 25
(20)
pp. 24615-24622.
10.1364/OE.25.024615.
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Abstract
In order to demonstrate cavity quantum electrodynamics using photonic crystal (PhC) cavities fabricated around self-assembled quantum dots (QDs), reliable spectral and spatial overlap between the cavity mode and the quantum dot is required. We present a method for using photoresist to optically fabricate heterostructure cavities in a PhC waveguide with a combined photolithography and micro-photoluminescence spectroscopy system. The system can identify single QDs with a spatial precision of ±25 nm, and we confirm the creation of high quality factor cavity modes deterministically placed with the same spatial precision. This method offers a promising route towards bright, on-chip single photon sources for quantum information applications.
| Type: | Article |
|---|---|
| Title: | Optical fabrication and characterisation of SU-8 disk photonic waveguide heterostructure cavities |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1364/OE.25.024615 |
| Publisher version: | https://doi.org/10.1364/OE.25.024615 |
| Language: | English |
| Additional information: | Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License (http://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10026139 |
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