Article
Optics
Madhura Ghosh Dastidar, Gniewomir Sarbicki
Summary: This paper considers a subgroup of unitary transformations on a mode of light induced by a Mach-Zehnder interferometer, as well as an algebra of observables describing a photon-number detector preceded by the interferometer. The uncertainty principles between these observables are explored, along with their usefulness in performing a Bell-like experiment to demonstrate the violation of the CHSH inequality under the assumption that the detector can only distinguish between zero photons and a non-zero number of photons. The local settings of the interferometer that lead to a maximal violation of the CHSH inequality are also shown.
Review
Engineering, Electrical & Electronic
Lukas Lachman, Radim Filip
Summary: This review introduces the theoretical analyses and applications of quantum non-Gaussian states of photons and phonons. It covers the operational criteria for tolerant photons and their extension to quantum non-Gaussian photon coincidences. It also compares the sensing capability and robustness of high-quality phononic Fock states.
PROGRESS IN QUANTUM ELECTRONICS
(2022)
Article
Astronomy & Astrophysics
David Edward Bruschi, Symeon Chatzinotas, Frank K. Wilhelm, Andreas Wolfgang Schell
Summary: The study explores the interplay between gravity and quantum coherence in light pulses propagating in curved spacetime, showing that quantum coherence can enhance deformation induced by propagation. It further supports the idea that quantum features, such as coherence, can be used to probe gravitational properties of physical systems. The research focuses on Earth-to-satellite communication setups where the effects of gravity, although weak, can be tested with current satellite technologies.
Article
Optics
G. Avosopiants, B. Bantysh, K. G. Katamadze, N. A. Bogdanova, Yu Bogdanov, S. P. Kulik
Summary: Thermal states of light are commonly used in quantum optics to study various quantum phenomena, including photon creation and annihilation operations. This paper introduces a technique for statistical parameter estimation of multimode multiphoton-subtracted thermal states, which can be applied to the multimode photon annihilation test.
Article
Optics
Hiroko Tomoda, Takato Yoshida, Takahiro Kashiwazaki, Takeshi Umeki, Yutaro Enomoto, Shuntaro Takeda
Summary: One of the leading approaches to large-scale quantum information processing is the continuous-variable scheme based on time multiplexing. Conventional CV TM experiments have used fixed light sources that can only output squeezed pulses with the same squeezing levels and phases. However, we demonstrate a programmable time-multiplexed squeezed light source that can generate sequential squeezed pulses with various squeezing levels and phases at a time interval below 100 ns. This light source enables arbitrary generation patterns through software, without changing its hardware configuration. It is expected to implement various large-scale CV QIP tasks.
Article
Optics
Jinzhong Zhu, Yue Mu, Guoxiang Huang
Summary: We propose a scheme to achieve simultaneous quantum squeezing of light polarizations and atomic spins via a perturbed double electromagnetically induced transparency (DEIT) in a cold four-level atomic ensemble. By deriving quantum nonlinear Schrodinger equations, we develop a theory of vector optical soliton (VOS) which exhibits ultraslow propagation velocity and extremely low generation power. We demonstrate that the perturbed DEIT leads to large polarization squeezing of the probe pulse and significant squeezing of atomic spins simultaneously. This work provides insights into the unique property of the quantum interface between light and atomic ensembles and has potential applications in quantum information and precision measurement.
Article
Optics
Dongmei Han, Na Wang, Meihong Wang, Zhongzhong Qin, Xiaolong Su
Summary: In this study, we experimentally demonstrate the remote preparation and manipulation of squeezed light, verifying the effectiveness of the entanglement-based model and indicating potential applications in remote quantum information processing.
Article
Optics
Isaac Nape, Keshaan Singh, Asher Klug, Wagner Buono, Carmelo Rosales-Guzman, Amy McWilliam, Sonja Franke-Arnold, Ane Kritzinger, Patricia Forbes, Angela Dudley, Andrew Forbes
Summary: Structured light is robust against disturbances in optical systems and remains immune to polarization inhomogeneity even in non-ideal conditions. This property allows for versatile applications in imaging and optical communication across noisy channels.
Article
Physics, Multidisciplinary
I. V. Doronin, E. S. Andrianov, A. A. Zyablovsky
Summary: An alternative method for creating subwavelength resonators is proposed based on modifying the modes of dielectric resonators using an active medium. By exceeding a certain gain value, the change in phase due to reflection at the layer boundaries compensates for the change in phase from propagation over the layer, leading to the formation of an unconventional mode with zero phase shift. This mode can be used to create a laser with a much smaller size compared to the wavelength of the generated light.
PHYSICAL REVIEW LETTERS
(2022)
Article
Mathematics, Interdisciplinary Applications
W. Domgno Kuipou, A. Mohamadou, E. Kengne
Summary: This paper investigates the spatiotemporal evolution of a population of mesenchymal cells during invasion using a mathematical models. The study reveals the viscoelastic properties of the medium and methods to control instability regions. The results show that the number of particles carried can be influenced by traction forces and substrate attachment.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Physics, Multidisciplinary
Swapan Mandal, Kartick Chandra Saha, Dolan Krishna Bayen, Norma Canosa, Raul Rossignoli
Summary: This research investigates the problem of two oscillators coupled through the angular momentum and derives analytical solutions for the system. The study shows that the coupled oscillators can exhibit amplitude squared squeezing and antibunching of photons due to the coupling effect.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Physics, Applied
L. V. Kulik, A. S. Zhuravlev, A. V. Larionov, A. A. Zagitova, I. V. Kukushkin
Summary: An ensemble of neutral excitations has been experimentally constructed in the Laughlin liquid at the electron filling factor 1/3, leading to a quadratic dependence of the reflection signal on the excitation power, which is attributed to the anti-Stokes-Stokes scattering of light from the excited Laughlin liquid.
APPLIED PHYSICS LETTERS
(2023)
Article
Optics
Hadrien Chevalier, A. J. Paige, Hyukjoon Kwon, M. S. Kim
Summary: This study focuses on the behavior of classical states of light in quantum optics, particularly in cases of low average photon numbers, showing how negative measurements can be performed and how the Leggett-Garg inequalities may be violated.
Article
Multidisciplinary Sciences
Shuai-Peng Wang, Alessandro Ridolfo, Tiefu Li, Salvatore Savasta, Franco Nori, Y. Nakamura, J. Q. You
Summary: Hybrid quantum systems in the ultrastrong and deep-strong coupling regimes exhibit exotic physical phenomena and have potential applications in quantum technologies. In these nonperturbative regimes, a qubit-resonator system has an entangled quantum vacuum with virtual photons that cannot be directly detected. However, the vacuum field can induce symmetry breaking of a dispersively coupled probe qubit. Wang et al. experimentally observe parity symmetry breaking in a probe qubit coupled to a deep-strongly coupled resonator, providing a way to explore novel quantum-vacuum effects.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Pei-Hao Fu, Yong Xu, Xiang-Long Yu, Jun-Feng Liu, Jiansheng Wu
Summary: The current-phase relation in a Josephson junction mediated by a two-dimensional irradiated topological insulator can be electrically modulated, including the 0-pi phase transition and anomalous phase shift of the current. These possible electrical modulations are caused by the photoinduced anisotropic helical edge states.
Article
Optics
Hang Dong, Zhixin Sun, Jingyi Li, Yahui Li, Wei Zhang, Guangyong Jin
Summary: This paper calculates thermal stresses and adsorption forces to determine laser cleaning conditions and establishes relevant models. Experimental results show that the removal effect is better with increasing nanosecond pulse delay, with the best effect achieved at 600 milliseconds pulse delay. Based on the findings, the mechanisms of oxide film removal involve thermal stress against adsorption and plasma shock wave breaking the oxide layer.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Junjie Zhang, Wenjun Li, Bingtao Li, Zheng-Da Hu, Jicheng Wang, Feng Zhang, Lei Wang
Summary: A multilayer thin film device structure based on Tamm plasmons is proposed for high-performance near-infrared hot electron photodetectors. By optimizing the device structure parameters, high responsivity detection can be achieved.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Hong Huang, Zhiguang Han
Summary: This paper proposes a new ghost imaging reconstruction method using ordered orthogonal Hadamard derived speckle as the illumination speckle series, and introduces the alternating direction multiplier method to improve the imaging performance. The evaluation results show that the method can achieve high-quality reconstructed images under low sampling conditions.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Moritsugu Sakamoto, Yuki Ono, Kohei Noda, Tomoyuki Sasaki, Nobuhiro Kawatsuki, Masayuki Tanaka, Hiroshi Ono
Summary: The effect of wavelength and polarization of illuminating light in polarization imaging for birefringent objects placed behind a scattering structure was experimentally investigated. The result shows that the spatial distribution of the birefringent object was more clearly visualized in the longer wavelength combined with circularly polarized light illumination. This finding indicates the potential of using polarization imaging with circularly polarized light illumination in the near-infrared range for visualizing birefringent objects with scattering.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Peihui Du, Hongfang Wang, Pengwei Li, Rukeyemuhan Abadula, Hmbat Batelbek, Min Gao
Summary: In this study, we theoretically demonstrate the strong coupling between Tamm plasmons and exciton polaritons in metal Al/DBR-molecular structures, extending the operating wavelength to the deep ultraviolet region. The coupling strength can be effectively manipulated by adjusting the structure parameters, offering potential benefits for the development of new-style optical filters.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Priyanka Chaudhary, Akhilesh Kumar Mishra
Summary: We design and numerically investigate the switching dynamics between two outer waveguides in a parity-time (PT)-symmetric adiabatically coupled three waveguides nonlinear directional coupler (NLDC) system. The study shows that the device can provide switching even when the middle waveguide is nonlinear and the outer waveguides are linear. Furthermore, the effect of loss to gain ratio on critical switching power and the impact of launched light power and gain (loss) value on transmitted power are also studied.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Wei Feng, Yongcong Yi, Shuyang Li, Zhi Xiong, Boya Xie, Zhen Zeng
Summary: Traditional imaging techniques are ineffective in achieving clear underwater imaging due to the presence of scattering media. Single-pixel imaging (SPI) system based on Unet++ offers a solution for reconstructing high-quality images in highly turbid water environments.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Xiaorui Qu, Jufeng Zhao, Haijun Tian, Junjie Zhu, Guangmang Cui
Summary: This paper studies the structural similarity between RGB and spectral images and proposes a non-iterative Images Structure Similarity (ISS) method for fast reconstruction of spectral images. Additionally, the input of the Deep Image Prior (DIP) method is optimized for the first time by using the initial spectral data reconstructed by ISS, leading to an improved starting value for the iteration. The experimental results show that the proposed method can enhance the reconstruction quality in both spectral and spatial resolutions, while significantly reducing the reconstruction time compared to other DIP-based methods.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Donghe Sheng, Zhe Han, Zanyang Qiao, Tianpei Dong, Chenxi Wang, Huiping Tian
Summary: In this study, a distributed multi-parameter sensor based on an etched few-mode multi-core fiber is proposed, allowing simultaneous sensing of temperature, strain, and sample refractive index. By combining space division multiplexing and stimulated Brillouin scattering, the sensor achieves high sensitivity in detecting these parameters.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Dehao Chen, Zhenwu Mo, Zehong Liang, Junjie Jiang, Huilin Tang, Yidan Sun, Ziyu Wang, Quanfeng Wei, Yanru Chen, Dongmei Deng
Summary: In this study, a novel family of elliptical Airyprime vortex beams (EAPVBs) is introduced, which inherits the excellent self-focusing properties of the circular Airyprime vortex beam (CAPVB). The asymmetric focusing of EAPVB leads to some novel properties, such as the splitting of high-order optical vortex and the formation of two foci. By taking advantage of these properties, EAPVB is constructed as a tunable optical bottle for particle capture.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Xiao Ma, Qiongchan Shao, Jian-Jun He
Summary: In this study, an SHS chip based on Su8 waveguide was designed and fabricated. By physically adjusting the metal electrodes and compensating for transmissivity fluctuations, the generation of side ripples was successfully suppressed.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Hongbin Zhang, Jiansen Du, Zongtao Chi, Hailin Cong, Bin Wang
Summary: In this paper, a novel type of dual-wavelength confocal metalens is proposed to solve the spatial crosstalk between two wavelengths. The metalens can greatly reduce the spatial crosstalk and achieve high precision and efficiency in confocal imaging. It can also focus light in specific wavelength ranges, making it suitable for imaging, microscopy, and optical fiber communication.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Rui Qiu, Guanmao Zhang, Shaokai Du, Jie Liu, Hongyu Jib, Kaiyun Bi, Bochuan Xing, Guangchao Diao
Summary: Recent research has developed an achromatic metalens that shows potential for replacing traditional lenses. This study focuses on a continuously variable focus height broadband achromatic metalens for long-wavelength infrared applications. By optimizing materials and parameters, chromatic aberration is effectively corrected, making it suitable for high-resolution LWIR imaging and spectroscopy systems.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Marcos Troncoso-Costas, Gaurav Jain, Yiming Li, Mohammed Patel, Lakshmi Narayanan Venkatasubramani, Sean O'Duill, Frank Smyth, Andrew Ellis, Francisco Diaz-Otero, Colm Browning, Liam Barry
Summary: In this work, a fast-switching tuneable laser capable of wide wavelength coverage, low noise and linewidth levels suitable for high-order modulation formats is demonstrated. The laser is characterized to cover a wavelength range of 35 nm in the C-band with nanosecond switching time. It is used to successfully demonstrate 480 Gbit/s 16QAM transmission over 25 km of single-mode fiber for a wavelength range of 19 nm.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Takeshi Moriyasu, Masahiko Tani, Hideaki Kitahara, Takashi Furuya, Jessica Afalla, Toshiro Kohmoto, Daishiro Koide, Hiroki Sato, Mitsutaka Kumakura
Summary: Optical pump-terahertz probe spectroscopy was used to study the photocarrier dynamics and optical characteristics of semiconductor Si. The results showed that the thickness of Si influenced the transmitted terahertz field amplitude and peak delay time, indicating differences in photocarrier dynamics between different Si materials.
OPTICS COMMUNICATIONS
(2024)