Abstract
We introduce a nondestructive method to determine the position of randomly distributed semiconductor quantum dots (QDs) integrated in a solid photonic structure. By setting the structure in an oscillating motion, we generate a large stress gradient across the QDs plane. We then exploit the fact that the QDs emission frequency is highly sensitive to the local material stress to map the position of QDs deeply embedded in a photonic wire antenna with an accuracy ranging from down to . In the context of fast developing quantum technologies, this technique can be generalized to different photonic nanostructures embedding any stress-sensitive quantum emitters.
- Received 23 September 2016
DOI:https://doi.org/10.1103/PhysRevLett.118.117401
© 2017 American Physical Society
Physics Subject Headings (PhySH)
Synopsis
Straining After Quantum Dots
Published 16 March 2017
The positions of quantum dots inside a microstructure can be determined by monitoring how an applied strain affects the dots’ photoluminescence.
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