Toninelli, E., Moreau, P.-A. , Gregory, T., Mihalyi, A., Edgar, M., Radwell, N. and Padgett, M. (2019) Resolution-enhanced quantum imaging by centroid estimation of biphotons. Optica, 6(3), pp. 347-353. (doi: 10.1364/OPTICA.6.000347)
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Abstract
The spatial resolution of an optical system is limited by diffraction. Various schemes have been proposed to achieve resolution enhancement by employing either a scanning source/detector configuration or a two-photon response of the object. Here, we experimentally demonstrate a full-field resolution-enhancing scheme, based on the centroid estimation of spatially quantum-correlated biphotons. Our standard-quantum-limited scheme is able to image a general non-fluorescing object, using low-energy and low-intensity infrared illumination (i.e., with <0.001 photon per pixel per frame at 710 nm), achieving 41% of the theoretically available resolution enhancement. Images of real-world objects are shown for visual comparison, in which the classically bound resolution is surpassed using our technically straightforward quantum-imaging scheme.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Padgett, Professor Miles and Edgar, Dr Matthew and Radwell, Dr Neal and Moreau, Dr Paul-Antoine and Gregory, Dr Thomas and Toninelli, Ermes |
| Authors: | Toninelli, E., Moreau, P.-A., Gregory, T., Mihalyi, A., Edgar, M., Radwell, N., and Padgett, M. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Optica |
| Publisher: | Optical Society of America |
| ISSN: | 2334-2536 |
| ISSN (Online): | 2334-2536 |
| Published Online: | 11 March 2019 |
| Copyright Holders: | Copyright © 2019 Optical Society of America |
| First Published: | First published in Optica 6(3): 347-353 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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