Coincidence measurements of two quantum-correlated photon pairs widely separated in the frequency domain
Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior performance. In particular, it enables photon pairs that are widely separated in the frequency domain, one in the visible region, the other i...
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| Published in | Scientific reports Vol. 13; no. 1; pp. 8520 - 10 |
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| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
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London
Nature Publishing Group UK
25.05.2023
Nature Publishing Group Nature Portfolio |
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| Abstract | Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior performance. In particular, it enables photon pairs that are widely separated in the frequency domain, one in the visible region, the other in the infrared region, to be used for quantum infrared sensing without direct detection of infrared photons. Here, simultaneous multiwavelength and broadband phase matching in a nonlinear crystal could provide versatile photon-pairs source for broadband infrared quantum sensing. This paper describes direct generation and detection of two quantum-correlated photon pairs produced via simultaneous phase-matched processes in periodic crystals. These simultaneous photon pairs provide a correlated state with two frequency modes in a single pass. To confirm the correlation, we constructed an infrared-photon counting system with two repetition-synchronized fiber lasers. We performed coincidence measurements between two pairs, 980 nm and 3810 nm, and 1013 nm and 3390 nm, which yielded coincidence-to-accidental ratios of 6.2 and 6.5, respectively. We believe that our novel correlated light source with two separate pairs in the visible and infrared region complements a wide-range of multi-dimensional quantum infrared processing applications. |
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| AbstractList | Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior performance. In particular, it enables photon pairs that are widely separated in the frequency domain, one in the visible region, the other in the infrared region, to be used for quantum infrared sensing without direct detection of infrared photons. Here, simultaneous multiwavelength and broadband phase matching in a nonlinear crystal could provide versatile photon-pairs source for broadband infrared quantum sensing. This paper describes direct generation and detection of two quantum-correlated photon pairs produced via simultaneous phase-matched processes in periodic crystals. These simultaneous photon pairs provide a correlated state with two frequency modes in a single pass. To confirm the correlation, we constructed an infrared-photon counting system with two repetition-synchronized fiber lasers. We performed coincidence measurements between two pairs, 980 nm and 3810 nm, and 1013 nm and 3390 nm, which yielded coincidence-to-accidental ratios of 6.2 and 6.5, respectively. We believe that our novel correlated light source with two separate pairs in the visible and infrared region complements a wide-range of multi-dimensional quantum infrared processing applications. Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior performance. In particular, it enables photon pairs that are widely separated in the frequency domain, one in the visible region, the other in the infrared region, to be used for quantum infrared sensing without direct detection of infrared photons. Here, simultaneous multiwavelength and broadband phase matching in a nonlinear crystal could provide versatile photon-pairs source for broadband infrared quantum sensing. This paper describes direct generation and detection of two quantum-correlated photon pairs produced via simultaneous phase-matched processes in periodic crystals. These simultaneous photon pairs provide a correlated state with two frequency modes in a single pass. To confirm the correlation, we constructed an infrared-photon counting system with two repetition-synchronized fiber lasers. We performed coincidence measurements between two pairs, 980 nm and 3810 nm, and 1013 nm and 3390 nm, which yielded coincidence-to-accidental ratios of 6.2 and 6.5, respectively. We believe that our novel correlated light source with two separate pairs in the visible and infrared region complements a wide-range of multi-dimensional quantum infrared processing applications.Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior performance. In particular, it enables photon pairs that are widely separated in the frequency domain, one in the visible region, the other in the infrared region, to be used for quantum infrared sensing without direct detection of infrared photons. Here, simultaneous multiwavelength and broadband phase matching in a nonlinear crystal could provide versatile photon-pairs source for broadband infrared quantum sensing. This paper describes direct generation and detection of two quantum-correlated photon pairs produced via simultaneous phase-matched processes in periodic crystals. These simultaneous photon pairs provide a correlated state with two frequency modes in a single pass. To confirm the correlation, we constructed an infrared-photon counting system with two repetition-synchronized fiber lasers. We performed coincidence measurements between two pairs, 980 nm and 3810 nm, and 1013 nm and 3390 nm, which yielded coincidence-to-accidental ratios of 6.2 and 6.5, respectively. We believe that our novel correlated light source with two separate pairs in the visible and infrared region complements a wide-range of multi-dimensional quantum infrared processing applications. Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior performance. In particular, it enables photon pairs that are widely separated in the frequency domain, one in the visible region, the other in the infrared region, to be used for quantum infrared sensing without direct detection of infrared photons. Here, simultaneous multiwavelength and broadband phase matching in a nonlinear crystal could provide versatile photon-pairs source for broadband infrared quantum sensing. This paper describes direct generation and detection of two quantum-correlated photon pairs produced via simultaneous phase-matched processes in periodic crystals. These simultaneous photon pairs provide a correlated state with two frequency modes in a single pass. To confirm the correlation, we constructed an infrared-photon counting system with two repetition-synchronized fiber lasers. We performed coincidence measurements between two pairs, 980 nm and 3810 nm, and 1013 nm and 3390 nm, which yielded coincidence-to-accidental ratios of 6.2 and 6.5, respectively. We believe that our novel correlated light source with two separate pairs in the visible and infrared region complements a wide-range of multi-dimensional quantum infrared processing applications. Abstract Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior performance. In particular, it enables photon pairs that are widely separated in the frequency domain, one in the visible region, the other in the infrared region, to be used for quantum infrared sensing without direct detection of infrared photons. Here, simultaneous multiwavelength and broadband phase matching in a nonlinear crystal could provide versatile photon-pairs source for broadband infrared quantum sensing. This paper describes direct generation and detection of two quantum-correlated photon pairs produced via simultaneous phase-matched processes in periodic crystals. These simultaneous photon pairs provide a correlated state with two frequency modes in a single pass. To confirm the correlation, we constructed an infrared-photon counting system with two repetition-synchronized fiber lasers. We performed coincidence measurements between two pairs, 980 nm and 3810 nm, and 1013 nm and 3390 nm, which yielded coincidence-to-accidental ratios of 6.2 and 6.5, respectively. We believe that our novel correlated light source with two separate pairs in the visible and infrared region complements a wide-range of multi-dimensional quantum infrared processing applications. |
| ArticleNumber | 8520 |
| Author | Kobayashi, Yohei Tani, Shuntaro Hojo, Masayuki Tanaka, Koichiro |
| Author_xml | – sequence: 1 givenname: Masayuki surname: Hojo fullname: Hojo, Masayuki email: hojo.masayuki.33e@st.kyoto-u.ac.jp organization: Department of Physics, Science, Kyoto University – sequence: 2 givenname: Shuntaro surname: Tani fullname: Tani, Shuntaro organization: The Institute for Solid State Physics, The University of Tokyo – sequence: 3 givenname: Yohei surname: Kobayashi fullname: Kobayashi, Yohei organization: The Institute for Solid State Physics, The University of Tokyo – sequence: 4 givenname: Koichiro surname: Tanaka fullname: Tanaka, Koichiro email: kochan@scphys.kyoto-u.ac.jp organization: Department of Physics, Science, Kyoto University |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/37231175$$D View this record in MEDLINE/PubMed |
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| Cites_doi | 10.1007/BF00191318 10.1038/s41598-021-97531-w 10.1103/PhysRevApplied.15.034019 10.1103/PhysRevApplied.17.014010 10.1038/nphoton.2015.252 10.1038/ncomms15184 10.1364/OE.415365 10.1021/acsphotonics.2c00464 10.3109/10409239509085140 10.1109/3.137 10.1364/OE.26.024712 10.1364/OL.42.001504 10.1038/s41598-017-17820-1 10.1364/OL.22.001553 10.1126/science.1085946 10.1364/OE.25.024459 10.1364/OE.455718 10.1038/nature07127 10.1364/PRJ.410302 10.1103/PhysRevLett.125.180502 10.1103/PhysRevA.69.041801 10.1364/OE.27.001416 10.1103/PhysRev.124.1646 10.1088/1464-4258/9/10/004 10.1007/s00340-009-3552-6 10.1364/OE.382351 10.1364/OE.442411 10.1088/1674-1056/ac20cb 10.1364/OL.44.004638 |
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| Snippet | Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior... Abstract Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with... |
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| Title | Coincidence measurements of two quantum-correlated photon pairs widely separated in the frequency domain |
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