Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Ermes Toninelli"'
Publikováno v:
IEEE Access, Vol 7, Pp 85860-85866 (2019)
The wavefront measurement of a light beam is a complex task, which often requires a series of spatially resolved intensity measurements. For instance, a detector array may be used to measure the local phase gradient in the transverse plane of the unk
Externí odkaz:
https://doaj.org/article/8204582fd7ed40808aa7b63214306ca5
Publikováno v:
2020 Photonics North (PN).
We present a full-field quantum imaging scheme using a quantum illumination protocol that exploits the spatial correlations between entangled photon-pairs. In doing so we exhibit an advantage for this scheme over the corresponding classical scheme in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9d52006a697ecd84a8ff70e46fbc9f9
https://doi.org/10.1109/pn50013.2020.9166939
https://doi.org/10.1109/pn50013.2020.9166939
Autor:
Graham M. Gibson, Gabriel C. Spalding, Miles J. Padgett, Simon A. R. Horsley, Euan Hendry, Ermes Toninelli, David B. Phillips
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America
Significance The emergence of “negative” frequencies in physical systems is often accompanied by intriguing consequences. For example, supersonic motion between a source and an observer leads to a negative Doppler-shifted frequency, the physical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9162e94ff71440335e89fd88360d3ec
https://doi.org/10.1073/pnas.1720776115
https://doi.org/10.1073/pnas.1720776115
The production of pairs of entangled photons simply by focusing a laser beam onto a crystal with a nonlinear optical response was used to test quantum mechanics and to open new approaches in imaging. The development of the latter was enabled by the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d71f6153bce240dc443776c073271f72
http://arxiv.org/abs/1908.03034
http://arxiv.org/abs/1908.03034
Publikováno v:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology.
How can quantum mechanics deliver better imaging performance? Parametric down-conversion sources produce pairs of photons that are correlated in many degrees of freedom, including their spatial positions. By using a camera to detect these pairs of ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d28cb74e59457297895ea7a1fa3847d
https://doi.org/10.1117/12.2515497
https://doi.org/10.1117/12.2515497
Publikováno v:
Journal of Modern Optics. 63:S51-S56
Spatially coherent helically phased light beams carry orbital angular momentum (OAM) and contain phase singularities at their centre. Destructive interference at the position of the phase singularity means the intensity at this point is necessarily z
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d08a8f01f1f1791935cd7c987feb08c
https://doi.org/10.1080/09500340.2016.1234651
https://doi.org/10.1080/09500340.2016.1234651
Publikováno v:
IEEE Access, Vol 7, Pp 85860-85866 (2019)
The wavefront measurement of a light beam is a complex task, which often requires a series of spatially resolved intensity measurements. For instance, a detector array may be used to measure the local phase gradient in the transverse plane of the unk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::951ccfa643d58b2d8a31ddfd4f9eccda
http://arxiv.org/abs/1901.07201
http://arxiv.org/abs/1901.07201
Publikováno v:
Quantum Information and Measurement (QIM) V: Quantum Technologies.
Using quantum states of light allows classical limits of imaging to be surpassed. Using entangled photon pairs we show a contrast enhancement compared to classical imaging techniques.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e227fc956daf3dd88c5462ae4f0bc81d
https://doi.org/10.1364/qim.2019.t5a.65
https://doi.org/10.1364/qim.2019.t5a.65
Autor:
Thomas Gregory, Miles J. Padgett, Paul-Antoine Moreau, Ermes Toninelli, Reuben S. Aspden, Peter A. Morris
Publikováno v:
Quantum Information and Measurement (QIM) V: Quantum Technologies.
We use an imaging setup based on heralded imaging to test a Bell-CHSH inequality within images. Based on a single full-field image accumulated by a camera we find that the Bell inequality is violated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ccb2cade91db5d80468c5ff53849c49
https://doi.org/10.1364/qim.2019.t5a.61
https://doi.org/10.1364/qim.2019.t5a.61
Autor:
Peter A. Morris, Thomas Gregory, Reuben S. Aspden, Miles J. Padgett, Paul-Antoine Moreau, Ermes Toninelli
Publikováno v:
Science Advances
We report the violation of a Bell inequality within full-field coincidence images of a phase object probed by entangled photons.
The violation of a Bell inequality not only attests to the nonclassical nature of a system but also holds a very uni
The violation of a Bell inequality not only attests to the nonclassical nature of a system but also holds a very uni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b146ab2c271840f9b1912bfbab35b2bd
https://pubmed.ncbi.nlm.nih.gov/31309146
https://pubmed.ncbi.nlm.nih.gov/31309146