Phase-dependent Hanbury-Brown and Twiss effect for the complete measurement of the complex coherence function

Abstract Hanbury-Brown and Twiss (HBT) effect is the foundation for stellar intensity interferometry. However, it is a phase insensitive two-photon interference effect. Here we extend the HBT interferometer by mixing intensity-matched reference fields with the input fields before intensity correlati...

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Main Authors: Xuan Tang, Yunxiao Zhang, Xueshi Guo, Liang Cui, Xiaoying Li, Z. Y. Ou
Format: Article
Language:English
Published: Nature Publishing Group 2025-01-01
Series:Light: Science & Applications
Online Access:https://doi.org/10.1038/s41377-024-01684-y
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author Xuan Tang
Yunxiao Zhang
Xueshi Guo
Liang Cui
Xiaoying Li
Z. Y. Ou
author_facet Xuan Tang
Yunxiao Zhang
Xueshi Guo
Liang Cui
Xiaoying Li
Z. Y. Ou
author_sort Xuan Tang
collection DOAJ
description Abstract Hanbury-Brown and Twiss (HBT) effect is the foundation for stellar intensity interferometry. However, it is a phase insensitive two-photon interference effect. Here we extend the HBT interferometer by mixing intensity-matched reference fields with the input fields before intensity correlation measurement. With the freely available coherent state serving as the reference field, we experimentally demonstrate the phase sensitive two-photon interference effect when the input fields are thermal fields in either continuous wave or non-stationary pulsed wave and measure the complete complex second-order coherence function of the input fields without bringing them together from separate locations. Moreover, we discuss how to improve the signal level by using the more realistic continuous wave broadband anti-bunched light fields as the reference field. Our investigations pave the way for developing new technology of remote sensing and interferometric imaging with applications in long baseline high-resolution astronomy.
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series Light: Science & Applications
spelling doaj-art-0fc51bd3582a41ff9b8dcef74b7821712025-01-19T12:39:17ZengNature Publishing GroupLight: Science & Applications2047-75382025-01-011411810.1038/s41377-024-01684-yPhase-dependent Hanbury-Brown and Twiss effect for the complete measurement of the complex coherence functionXuan Tang0Yunxiao Zhang1Xueshi Guo2Liang Cui3Xiaoying Li4Z. Y. Ou5Department of Physics, City University of Hong KongThe State Key Laboratory of Precision Measurement Technology and Instruments, College of Precision Instrument and Opto-Electronics Engineering, Tianjin UniversityThe State Key Laboratory of Precision Measurement Technology and Instruments, College of Precision Instrument and Opto-Electronics Engineering, Tianjin UniversityThe State Key Laboratory of Precision Measurement Technology and Instruments, College of Precision Instrument and Opto-Electronics Engineering, Tianjin UniversityThe State Key Laboratory of Precision Measurement Technology and Instruments, College of Precision Instrument and Opto-Electronics Engineering, Tianjin UniversityDepartment of Physics, City University of Hong KongAbstract Hanbury-Brown and Twiss (HBT) effect is the foundation for stellar intensity interferometry. However, it is a phase insensitive two-photon interference effect. Here we extend the HBT interferometer by mixing intensity-matched reference fields with the input fields before intensity correlation measurement. With the freely available coherent state serving as the reference field, we experimentally demonstrate the phase sensitive two-photon interference effect when the input fields are thermal fields in either continuous wave or non-stationary pulsed wave and measure the complete complex second-order coherence function of the input fields without bringing them together from separate locations. Moreover, we discuss how to improve the signal level by using the more realistic continuous wave broadband anti-bunched light fields as the reference field. Our investigations pave the way for developing new technology of remote sensing and interferometric imaging with applications in long baseline high-resolution astronomy.https://doi.org/10.1038/s41377-024-01684-y
spellingShingle Xuan Tang
Yunxiao Zhang
Xueshi Guo
Liang Cui
Xiaoying Li
Z. Y. Ou
Phase-dependent Hanbury-Brown and Twiss effect for the complete measurement of the complex coherence function
Light: Science & Applications
title Phase-dependent Hanbury-Brown and Twiss effect for the complete measurement of the complex coherence function
title_full Phase-dependent Hanbury-Brown and Twiss effect for the complete measurement of the complex coherence function
title_fullStr Phase-dependent Hanbury-Brown and Twiss effect for the complete measurement of the complex coherence function
title_full_unstemmed Phase-dependent Hanbury-Brown and Twiss effect for the complete measurement of the complex coherence function
title_short Phase-dependent Hanbury-Brown and Twiss effect for the complete measurement of the complex coherence function
title_sort phase dependent hanbury brown and twiss effect for the complete measurement of the complex coherence function
url https://doi.org/10.1038/s41377-024-01684-y
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