| DOI | Resolve DOI: https://doi.org/10.1103/PhysRevLett.128.023601 |
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| Author | Search for: Thekkadath, G. S.1ORCID identifier: https://orcid.org/0000-0002-4366-2245; Search for: Bell, B. A.; Search for: Patel, R. B.; Search for: Kim, M. S.; Search for: Walmsley, I. A. |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
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| Funder | Search for: Engineering and Physical Sciences Research Council; Search for: H2020 Marie Skłodowska-Curie Actions; Search for: Korea Institute of Science and Technology Information; Search for: National Research Council of Canada |
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| Format | Text, Article |
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| Abstract | The ability to manipulate and measure the time-frequency structure of quantum light is useful for information processing and metrology. Measuring this structure is also important when developing quantum light sources with high modal purity that can interfere with other independent sources. Here, we present and experimentally demonstrate a scheme based on intensity interferometry to measure the joint spectral mode of photon pairs produced by spontaneous parametric down-conversion. We observe correlations in the spectral phase of the photons due to chirp in the pump. We show that our scheme can be combined with stimulated emission tomography to quickly measure their mode using bright classical light. Our scheme does not require phase stability, nonlinearities, or spectral shaping and thus is an experimentally simple way of measuring the modal structure of quantum light. |
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| Publication date | 2022-01-10 |
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| Publisher | American Physical Society |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 737af0e3-c426-4438-89e2-30a3a8ec2289 |
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| Record created | 2022-05-24 |
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| Record modified | 2023-03-16 |
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