Phase reconstruction plays a pivotal role in biology, medical imaging, and wavefront sensing. However, multiple measurements and adjustments are usually required for conventional schemes, which inevitably reduces the ...Phase reconstruction plays a pivotal role in biology, medical imaging, and wavefront sensing. However, multiple measurements and adjustments are usually required for conventional schemes, which inevitably reduces the quality of phase imaging. Here, based on multi-channel metasurface and quantum entanglement source, a simple and integrated quantum analog operation system is proposed to realize quantitative phase reconstruction with a high signal-to-noise ratio (SNR) under a low signal photon level. Without additional measurements and adjustments, four differential images necessary for the phase reconstruction are captured simultaneously. The non-local correlation of entangled photon pairs enables to remotely manipulate working modes of the system. Besides, the consistency of entangled photon pairs in time domain makes it possible to achieve a high SNR imaging by trigger detection. The results may potentially empower the application of metasurfaces in optical chip, wave function reconstruction, and label-free biology imaging.展开更多
Photonic spin Hall effect(SHE)is a fundamental and important optical phenomenon,which originates from the spin-orbit interactions(SOI)of light,forming the cornerstone for a wide range of optical precision measurements...Photonic spin Hall effect(SHE)is a fundamental and important optical phenomenon,which originates from the spin-orbit interactions(SOI)of light,forming the cornerstone for a wide range of optical precision measurements.However,the wave function collapse in the single-photon SHE is unpredictable as spin collapse has inherent randomness governed by the Born rule.Here,nonlocal spin bunching and antibunching of polarization-entangled photon pairs called two-photon SHE is realized to predict and manipulate the wave function collapse,which is fundamentally different from the single-photon SHE.The two-photon SHE is sensitive to the relative phase among entangled photon pairs,enabling continuous control from nonlocal spin bunching to anti-bunching.Owing to the phase sensitivity of the two-photon SHE,an accurate and simple quantitative phase imaging scheme is realized.The two-photon SHE may pave the way for unveiling the wave function evolution in the SOI of light and manipulating spin-dependent photonic quantum effects.展开更多
基金supported by the National Natural Science Foundation of China(Grants No.62221002,Grants No.12174097).
文摘Phase reconstruction plays a pivotal role in biology, medical imaging, and wavefront sensing. However, multiple measurements and adjustments are usually required for conventional schemes, which inevitably reduces the quality of phase imaging. Here, based on multi-channel metasurface and quantum entanglement source, a simple and integrated quantum analog operation system is proposed to realize quantitative phase reconstruction with a high signal-to-noise ratio (SNR) under a low signal photon level. Without additional measurements and adjustments, four differential images necessary for the phase reconstruction are captured simultaneously. The non-local correlation of entangled photon pairs enables to remotely manipulate working modes of the system. Besides, the consistency of entangled photon pairs in time domain makes it possible to achieve a high SNR imaging by trigger detection. The results may potentially empower the application of metasurfaces in optical chip, wave function reconstruction, and label-free biology imaging.
基金supported by the National Natural Science Foundation of China(Grant No.12174097)the Yuelu Mountain Industrial Innovation Center(Grant No.2025YCH0131).
文摘Photonic spin Hall effect(SHE)is a fundamental and important optical phenomenon,which originates from the spin-orbit interactions(SOI)of light,forming the cornerstone for a wide range of optical precision measurements.However,the wave function collapse in the single-photon SHE is unpredictable as spin collapse has inherent randomness governed by the Born rule.Here,nonlocal spin bunching and antibunching of polarization-entangled photon pairs called two-photon SHE is realized to predict and manipulate the wave function collapse,which is fundamentally different from the single-photon SHE.The two-photon SHE is sensitive to the relative phase among entangled photon pairs,enabling continuous control from nonlocal spin bunching to anti-bunching.Owing to the phase sensitivity of the two-photon SHE,an accurate and simple quantitative phase imaging scheme is realized.The two-photon SHE may pave the way for unveiling the wave function evolution in the SOI of light and manipulating spin-dependent photonic quantum effects.
