Fast imaging of multimode transverse-spectral correlations for twin photons
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- ol-46-13-3009(1)
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Hyperentangled photonic states-exhibiting nonclassical correlations in several degrees of freedom-offer improved performance of quantum optical communication and computation schemes. Experimentally, a hyperentanglement of transverse-wave-vector and spectral modes can be obtained in a straightforward way with multimode parametric single-photon sources. Nevertheless, experimental characterization of such states remains challenging. Not only single-photon detection with high spatial resolutiona single-photon camera-is required, but also a suitable mode converter to observe the spectral-temporal degree of freedom. We experimentally demonstrate a measurement of full four-dimensional transverse-wave-vector-spectral correlations between pairs of photons produced in noncollinear spontaneous parametric downconversion. Utilization of a custom ultrafast single-photon camera provides high resolution and a short measurement time. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Originalsprog | Engelsk |
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Tidsskrift | Optics Letters |
Vol/bind | 46 |
Udgave nummer | 13 |
Sider (fra-til) | 3009-3012 |
Antal sider | 4 |
ISSN | 0146-9592 |
DOI | |
Status | Udgivet - 1 jul. 2021 |
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