Article
Physics, Multidisciplinary
Yang Liu, Zhan Yu, Xing Bai, Sheng Yuan, Yujie Wang, Xingyu Chen, Xinjia Li, Mingze Sun, Xin Zhou
Summary: A compressive color ghost imaging method based on pseudo-inverse matrix is proposed in this paper, which improves the quality of imaging result via post-processing the measurement matrix. The feasibility of this method is proved by numerical simulation and physical experiment, and comparisons with other typical improvement methods are conducted, showing superior performance in reconstructing color images.
Article
Optics
Sergey Magnitskiy, Dmitriy Agapov, Anatoly Chirkin
Summary: This paper develops the theory of polarization ghost image formation in biphoton light of spontaneous parametric scattering and proposes the concept of quantum ghost polarimetry, which allows for obtaining two-dimensional maps of the polarization properties of objects by measuring correlation functions in different polarization states.
Article
Chemistry, Multidisciplinary
Min Tao, Xiaobin Gong, Jian Guan, Junfeng Song, Zhixin Song, Xueyan Li, Shuxu Guo, Jian Chen, Siyao Yu, Fengli Gao
Summary: The study proposes a method to screen data by setting two threshold values during the sampling process, which can improve the quality of reconstructed images and speed up the computation process.
APPLIED SCIENCES-BASEL
(2021)
Article
Optics
Valerio Flavio Gili, Dupish Dupish, Andres Vega, Massimo Gandola, Enrico Manuzzato, Matteo Perenzoni, Leonardo Gasparini, Thomas Pertsch, Frank Setzpfandt
Summary: Quantum ghost imaging (QGI) is an imaging protocol that exploits photon-pair correlations from spontaneous parametric down-conversion (SPDC). In this study, a two-dimensional single-photon avalanche diode (SPAD) array detector is used for spatially resolving the path in QGI implementation. By utilizing non-degenerate SPDC, samples can be investigated at infrared wavelengths without the need for SWIR cameras, while spatial detection can still be performed in the visible region using silicon-based technology. These findings advance QGI schemes for practical applications.
Review
Chemistry, Multidisciplinary
Audrey Eshun, Oleg Varnayski, Juan P. Villabona-Monsalve, Ryan K. Burdick, Theodore Goodson
Summary: The enhanced interest in quantum-related phenomena has opened up new opportunities for chemists to detect and analyze chemical processes. The use of nonclassical states of light and entangled states of light has been studied for spectroscopy, microscopy, and interferometry, providing potential benefits for the chemical community.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Optics
Haipeng Zhang, Ke Li, Feixiang Wang, Hong Yu, Changzhe Zhao, Guohao Du, Zhongliang Li, Biao Deng, Honglan Xie, Shensheng Han, Tiqiao Xiao
Summary: Reconstructing high-fidelity images with few measurements is a major challenge for X-ray ghost imaging (XGI), but the synthetic aperture XGI (SAXGI) combined with compressive sensing has shown promising results in experiments, providing a potential solution for practical applications of XGI.
CHINESE OPTICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Jinyong Ma, Jihua Zhang, Yuxin Jiang, Tongmiao Fan, Matthew Parry, Dragomir N. Neshev, Andrey A. Sukhorukov
Summary: We propose and demonstrate the preparation of desired two-photon polarization states using a nonlinear metasurface incorporating multiplexed silica metagratings on a lithium niobate film. The two-photon polarization states can be shaped by adjusting the metagrating orientation, and by combining multiple metagratings, arbitrary polarization-entangled qutrit states can be generated. This enables the miniaturization of optically controlled quantum devices using ultrathin metasurfaces as polarization-entangled photon sources.
Article
Chemistry, Multidisciplinary
Jinyong Ma, Jihua Zhang, Yuxin Jiang, Tongmiao Fan, Matthew Parry, Dragomir N. Neshev, Andrey A. Sukhorukov
Summary: The use of a nonlinear metasurface and a thin film allows for the flexible manipulation of complex polarization states of photon pairs. It is found that the orientation of the metagratings can shape the polarization states of the photon pairs. Additionally, combining three metagratings enables the generation of arbitrary polarization-entangled qutrit states.
Article
Engineering, Electrical & Electronic
Yong Wang, Huishi Xia, Mu Zhou, Liangbo Xie, Wei He
Summary: This article proposes a method for denoise and target recognition of entangled optical quantum imaging systems. The RestoreCGAN is designed to restore and reconstruct the missing edge contour structure of the target, and the TSFFCNet is designed to extract deep semantic features and shallow features for target recognition. Experimental results show that RestoreCGAN outperforms the state-of-the-art methods in terms of both peak signal-to-noise ratio (PSNR) and structural similarity (SSIM). Moreover, the recognition accuracy of the RestoreCGAN in combination with the TSFFCNet reaches 97.42%. This proves that the deep-learning method is effective for denoise and target recognition of entangled optical quantum imaging systems.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2023)
Article
Quantum Science & Technology
Jonte R. Hance, John Rarity
Summary: The protocol presents a ghost imaging method that maintains counterfactuality, ensuring no interaction between light and the imaged object. In the infinite limit, this method allows imaging of light-sensitive objects without damaging them, while in general, it offers significant improvement in visibility and signal-to-noise ratio compared to previous protocols.
NPJ QUANTUM INFORMATION
(2021)
Article
Optics
Huan Cui, Jie Cao, Qun Hao, Dong Zhou, Mingyuan Tang, Kaiyu Zhang, Yingqiang Zhang
Summary: The research proposes an omnidirectional ghost imaging system that can achieve a 360 degrees omnidirectional field of view with the addition of a curved mirror, obtaining undistorted and unwrapping-free panoramic images with uniform resolution.
Article
Optics
Baolei Liu, Fan Wang, Chaohao Chen, Fei Dong, David Mcgloin
Summary: Ghost imaging captures 2D images using a point detector instead of an array sensor, offering the potential to image objects in turbid media and bypass offline processing. The self-evolving ghost imaging strategy evaluates and generates illumination patterns in real time, updating the object's image at a rapid rate. SEGI demonstrates robust imaging capabilities for static and moving objects, surpassing traditional computational ghost imaging in terms of imaging power and adaptability.
Article
Physics, Multidisciplinary
Alan C. Santos, R. Bachelard
Summary: In this Letter, we demonstrate the efficient generation of entanglement between two artificial giant atoms using photon-mediated interactions in a waveguide. By taking advantage of adjustable decay processes and interference processes, the spontaneous sudden birth of entanglement is significantly enhanced with giant atoms. Highly entangled states can also be generated in the steady-state regime by driving the system with a resonant classical field. We propose using the emitted light statistics as a witness of entanglement, with giant photon bunching observed near maximal entanglement regime. These results pave the way for generating quantum correlations and manipulating photon statistics in systems of giant atoms.
PHYSICAL REVIEW LETTERS
(2023)
Article
Optics
Zhiyuan Ye, Peixia Zheng, Wanting Hou, Dian Sheng, Weiqi Jin, Hong-Chao Liu, Jun Xiong
Summary: This paper introduces a new technology called computational convolutional ghost imaging (CCGI), which uses a single-pixel photodetector and structured illumination to perform convolution operations, enabling direct observation of the features of interest in a target without imaging. The CCGI scheme can adaptively work under sub-Nyquist sampling conditions and is suitable for real-time non-imaging edge detection.
OPTICS AND LASERS IN ENGINEERING
(2022)
Article
Optics
Leihong Zhang, Zhixiang Bian, Hualong Ye, Dawei Zhang, Kaimin Wang
Summary: The study developed a CGAN algorithm to restore images and trained the network with simulation data to improve the effectiveness of the proposed method. The results showed significant improvement in average PSNR and SSIM, indicating the great potential of the method for imaging under low photon conditions.
OPTICS COMMUNICATIONS
(2022)
