Metasurface enabled quantum edge detection

Zhou, Junxiao; Liu, Shikai; Qian, Haoliang; Li, Yin-Hai; Luo, Hailu; Wen, Shuangchun; Zhou, Zhi-Yuan; Guo, Guang‐Can; Shi, Bao‐Sen; Liu, Zhaowei

doi:10.1126/sciadv.abc4385

Cited by 115 publications

(65 citation statements)

References 53 publications

(55 reference statements)

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“…It is noteworthy that the superior sensitivity of the implemented upconversion imaging system benefited from the coincidence‐pumping technique with ultrafast optical pulses. Similar mechanism was manifested in recent works on single‐photon edge enhanced detection at 810 nm, [ 40,41 ] where the asynchronized background photons were significantly suppressed by the narrow time window for the two‐photon coincidence. In comparison, the optical pulse could provide a much narrower gate for the imager than that given by the electrical pulse.…”

Section: Resultssupporting

confidence: 76%

Mid‐Infrared Single‐Photon Edge Enhanced Imaging Based on Nonlinear Vortex Filtering

Wang

Fang

Zheng

et al. 2021

Laser & Photonics Reviews

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Edge enhanced imaging via the spiral phase contrast enables to reveal the phase or amplitude gradients of a target, which has been proved useful in feature recognition, machine vision, and object identification. A long quest is to extend the operation wavelength into the mid‐infrared (MIR) region, as highly demanded in various fields including infrared sensing, astronomic observation, and biomedical diagnosis. Here, ultra‐sensitive MIR imaging at the single‐photon level based on nonlinear frequency upconversion is demonstrated, where the spectrally converted replica of the MIR object image at 3070 nm is captured by a silicon electron multiplying charged coupled device. The imaging sensitivity is significantly improved by the coincidence pulsed pumping with a spectro‐temporal optimization. Furthermore, the edge enhancement is realized by imprinting the spiral phase pattern of the pump onto the upconverted field at the Fourier plane within the nonlinear crystal. Such a nonlinear spatial filter not only provides an effective way to implement the required high‐fidelity vortex screening in the edge enhanced detection, but also renders the MIR illumination into a visible image in an efficient and low‐noise fashion. The presented system for MIR edge enhanced imaging might facilitate immediate applications in label‐free histopathological diagnosis and non‐destructive defect inspection.

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Section: Resultssupporting

confidence: 76%

Mid‐Infrared Single‐Photon Edge Enhanced Imaging Based on Nonlinear Vortex Filtering

Wang

Fang

Zheng

et al. 2021

Laser & Photonics Reviews

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“…Besides, the vector profiles were obtained by spatial Stokes tomography with a 10 s on-chip accumulation, namely, the reconstruction of each file requires 40 s to acquire ψ L , ψ R , ψ H , and ψ D , respectively. See Zhou et al [26] for more details about the imaging. Even so, all the profiles still coincide well with the theory.…”

Section: Resultsmentioning

confidence: 99%

Heralded Generation of Vectorially Structured Photons With a High Purity

Zhu

et al. 2021

Front. Phys.

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Engineering vector spatial modes of photons is an important approach for manipulating high-dimension photonic states in various quantum optical experiments. In this work, we demonstrate the generation of heralded single photons with well-defined vector spatial modes by using a self-stable polarizing interferometer comprising a spatial light modulator. Specifically, it is shown that, by carefully tailoring and compensating the spatial and temporal amplitudes of manipulated photons, one can exactly convert ultrafast single photons into desired spin-orbit states with an extremely high purity. This compact and robust device provides a versatile way for not only the generation, but also the manipulation and characterization of arbitrary photonic spin-orbit states.

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“…Metasurface placed inside a Sagnac style interferometer is able to absorb two photon NOON state with efficiency up to 40%, which is much as twice as that of linear absorption process. Metasurface can also be employed in quantum ima-ging 96 . As shown in Fig.…”

Section: Quantum Optical Applicationsmentioning

confidence: 99%

Quantum photonics based on metasurfaces

Liu¹,

Shi²,

Chen³

et al. 2021

OEA

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From metamaterials to metasurfaces, optical nano-structure has been widely investigated for novel and high efficiency functionalities. Apart from the intrisinsic properties of composite material, rich capabilities can be derived from the judicious design of metasurfaces, which enable more excellent and highly integrated optical devices than traditional bulk optical elements. In the meantime, the abundant manipulation abilites of light in the classical domain can be carried over into quantum domain. In this review, we highlight recent development of quantum optics based on metasurfaces, ranging from quantum plasmonics, generation, manipulation and appplication of quantum light to quantum vaccum engineering etc. Finally, some promising avenues for quantum optics with the help of optical metasurface are presented.

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Metasurface enabled quantum edge detection

Cited by 115 publications

References 53 publications

Mid‐Infrared Single‐Photon Edge Enhanced Imaging Based on Nonlinear Vortex Filtering

Mid‐Infrared Single‐Photon Edge Enhanced Imaging Based on Nonlinear Vortex Filtering

Heralded Generation of Vectorially Structured Photons With a High Purity

Quantum photonics based on metasurfaces

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