Boucher, P., Defienne, H. and Gigan, S. (2021) Engineering spatial correlations of entangled photon pairs by pump beam shaping. Optics Letters, 46(17), pp. 4200-4203. (doi: 10.1364/OL.425372) (PMID:34469974)
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Abstract
The ability to engineer the properties of quantum optical states is essential for quantum information processing applications. Here, we demonstrate tunable control of spatial correlations between photon pairs produced by spontaneous parametric down-conversion, and measure them using an electron multiplying charge coupled device (EMCCD) camera. By shaping the spatial pump beam profile in a type-I collinear configuration, we tailor the spatial structure of coincidences between photon pairs entangled in high dimensions without effect on intensity. The results highlight fundamental aspects of spatial coherence and hold potential for the development of quantum technologies based on high-dimensional spatial entanglement.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Defienne, Dr Hugo |
| Authors: | Boucher, P., Defienne, H., and Gigan, S. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Optics Letters |
| Publisher: | Optical Society of America |
| ISSN: | 0146-9592 |
| ISSN (Online): | 1539-4794 |
| Published Online: | 21 July 2021 |
| Copyright Holders: | Copyright © 2021 Optical Society of America |
| First Published: | First published in Optics Letters 46(17): 4200-4203 |
| Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
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