Article
Multidisciplinary Sciences
Hirotsugu Kikuchi, Takahiro Ashimine, Zehui Qin, Hiroki Higuchi, Shizuka Anan, Yasushi Okumura
Summary: Polymers selectively aggregate at -1/2 disclinations in polymer-stabilised blue phases (PSBP), extending the temperature range of the blue phase and affecting their physical properties. Lower polymerisation rate monomers can lead to more selective polymer aggregation at disclinations in PSBP, improving the electro-optical effect in the material.
Article
Chemistry, Multidisciplinary
Mengxiao Jia, Mofei Sha, Chunxin Hu, Bo Zhang, Hongmei Ma, Yubao Sun
Summary: In this study, a polymer stabilised isotropic phase liquid crystal (PSILC) with high Kerr constant, low hysteresis, and fast response was achieved by adding different proportions and total content of polymer monomer into liquid crystal, along with a chiral dopant, and undergoing UV photo-polymerisation at the isotropic phase.
Article
Chemistry, Multidisciplinary
Chunxin Hu, Mofei Sha, Mengxiao Jia, Bo Zhang, Hongmei Ma, Yubao Sun
Summary: The optimal content ratio of polymer monomers RM257 and C12A in polymer-stabilised blue-phase liquid crystal (PSBPLC) display is 1.225, with a total content of 7.5 wt.%, resulting in uniform polymer network structure, hysteresis effect of 0.84%, and residual birefringence of 0.55%. These research findings are crucial for designing PSBPLC devices.
Article
Optics
Lan Luo, Tong Li, Yinghang Jiang, Liang Fang, Bo Liu, Zhiyou Zhang
Summary: In this paper, a weak measurement method using two pointers is proposed to estimate the magneto-optical Kerr angle, which is robust to ellipticity. The double pointers, namely the amplified displacement shift and intensity of the post-selected light beam, can be directly output by a detector. It is demonstrated that the product of the double pointers is only related to the phase variation and independent of amplitude errors, making it effective in extracting phase information and shielding amplitude noise.
Article
Nanoscience & Nanotechnology
Wenming Chai, Junxiao Ma, Weidong Zhu, Dazheng Chen, He Xi, Jincheng Zhang, Chunfu Zhang, Yue Hao
Summary: All-inorganic perovskite CsPbIBr2 materials show promise for optoelectronics, but tend to undergo halide phase segregation under illumination, impacting their properties. By modifying the crystalline grains with PMMA, researchers successfully overcame this issue, resulting in improved performance of CsPbIBr2 films.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Physics, Particles & Fields
Haryanto M. Siahaan
Summary: This study explores the holographic picture for the Kerr-de Sitter spacetime with multiple horizons, demonstrating the existence of hidden conformal symmetry for both black hole and cosmological horizons. Scalar scattering calculations are used in the near region of each horizon to support the holographic approach, showing that the cosmological horizon entropy and associated scalar scattering can be understood through a two-dimensional conformal field theory.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Chemistry, Multidisciplinary
Yujie Chen, Chenglin Zheng, Wenjie Yang, Jing Li, Feng Jin, Xiuhong Li, Jingxia Wang, Lei Jiang
Summary: This study successfully achieved a broad-temperature reconstructed laser based on a dye-doped polymer-stabilized blue-phase liquid crystal with a high working temperature range. The temperature-tunable behavior of the laser is associated with the phase transition of the unpolymerized content in the system.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Meng Wang, Wei Hu, Zhaozhong Li, He Song, Peiyao Jiang, Shaofan Yang, Huai Yang
Summary: This study prepared polymer-stabilised blue phase I material systems with self-assembled 3D tunable photonic bandgap (PBG) using different acrylate monomers. The electrical tunability of the material system was notably improved by using chiral acrylate monomers, leading to a reversible electrically modulated large range red shifting of the PBG through the fabrication of a chiral polymer network. Increasing the polymerizable chiral monomer concentration can improve optical quality and response time.
Article
Materials Science, Multidisciplinary
Victor H. Ortiz, Sinisa Coh, Richard B. Wilson
Summary: We report the magneto-optic Kerr effect (MOKE) angle of Au magnetically excited by spin accumulation in Au/Co heterostructures. The exceptional sensitivity of the optical properties of Au to spin magnetic moments makes it a potentially useful tool in the development of optospintronic technologies.
Article
Chemistry, Inorganic & Nuclear
Thi Thiet Vu, Nathalie Daro, Mathieu Marchivie, Stephane Mornet, Eric Freysz, Guillaume Chastanet
Summary: This paper presents a chemical strategy for obtaining nanoparticles of the RbxMn[Fe(CN)(6)]((x+2)/3)center dot nH(2)O (RbMnFe) Prussian blue analogue in a direct manner, aiming to maintain its switching ability at the nanoscale. The study found that smaller particles had lower rubidium content, potentially affecting the observation of switching properties on very small particles. The results show the potential for creating switchable particles without surfactants, and the importance of this work in processing nanoparticles into devices.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Vandna Sharma, Pankaj Kumar
Summary: The electro-optically oriented polymer dispersed liquid crystals (PDLCs) are important for their optical transmission, scattering, and optical phase modulation characteristics. In this study, nanoparticles (NPs) were dispersed in normal mode PDLCs using the polymerization induced phase separation method. The results showed that the phase transition temperature from nematic to isotropic decreased and droplet size increased in NPs dispersed PDLCs compared to pristine PDLCs. The reorientation of liquid crystals required a much lower voltage in NPs dispersed PDLCs, and the Kerr phase increased with the dispersion of NPs.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Optics
Nicolas Englebert, Francesco De Lucia, Pedro Parra-Rivas, Carlos Mas Arabi, Pier-John Sazio, Simon-Pierre Gorza, Francois Leo
Summary: By driving Kerr cavity solitons around twice their carrier frequency in an optical parametric oscillator with competing nonlinearities, researchers have extended the potential applications of Kerr resonators to random number generators and Ising machines. This new configuration opens up new possibilities for utilizing cavity solitons in different fields.
Article
Chemistry, Multidisciplinary
Michiko Yamaguchi, Kenji Shimizu, Masanobu Sagisaka, Atsushi Yoshizawa
Summary: The study investigated the impact of different concentrations of reactive monomers on polymer-stabilised blue phase materials, finding that increasing monomer concentration can widen the temperature range of the blue phase and affect the morphology of the polymer network.
Article
Materials Science, Multidisciplinary
Sumit Yadav, Poonma Malik, Praveen Malik
Summary: A hybrid blue phase liquid crystal material with a wide blue phase temperature range of over 40K was prepared and its optical, electro-optical, and dielectric properties were investigated. The hybrid material, which contained cadmium telluride quantum dots in polymer stabilized blue phase liquid crystals, showed significantly improved thermal stability compared to other blue phase liquid crystal systems. In addition, the present work also observed a substantial reduction in operating voltage, improvement in transmittance, and increased Kerr constant with a threefold increase in dielectric permittivity in quantum dots doped polymer stabilized blue phase liquid crystals. The examined hybrid materials with wide blue phase temperature range and superior electro-optical properties are expected to be important for various photonic applications.
Article
Optics
Jing-Hui Huang, Jeff S. Lundeen, Kyle M. Jordan, Adetunmise C. Dada, Guang-Jun Wang, Xiang-Yun Hu
Summary: The achievement of a larger magneto-optical Kerr effect in nanoscale layered structures is important for both theoretical understanding and practical applications. This paper introduces a scheme based on weak-value amplification for detecting and enhancing the Kerr signals in these structures. The results show that the combination of the cavity and WVA can effectively amplify the MOKE signals compared to traditional MOKE setups.
Article
Environmental Sciences
Qiquan Li, Qian Deng, Hongyan Fang, Xuelian Yu, ZeMeng Fan, Zhengping Du, Meng Li, Qi Tao, Weiping Song, Bin Zhao, Chaoping Chen, Rong Huang, Dagang Yuan, Xuesong Gao, Bing Li, Changquan Wang, John P. Wilson
Summary: The study explored the key factors controlling Cd accumulation in the soil profile under actual field conditions, showing that phosphate fertilizer rates, parent material types, and precipitation affect Cd accumulation in agricultural soils. It was found that parent material is the decisive factor in determining the magnitudes and depths of exogenous Cd accumulation in the soil profile.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Applied
Chaoping Chen, Jie-Ting Geng, Nonthacha Thanathornvarakul, Sumate Keratimanoch, Nail Ucyol, Emiko Okazaki, Kazufumi Osako
Summary: This study investigated the effects of processing sequence and frozen storage period on seasoned Alaska pollack roe product quality, finding that products made by the Seasoning-Frozen storage process showed better quality with higher mechanical property values, better surface color, and more stable protein composition.
Article
Engineering, Biomedical
Shun-Ping Wang, Yang-Chen Chou, Cheng-En Hsu, Chi-Wen Chou, Chao-Ping Chen, Kun-Jhih Lin, Fuu-Cheng Jiang, Wen-Chuan Chen, Chen-Chiang Lin
Summary: Maintaining a minor plate-bone gap in the far-cortical locking technique can improve biomechanical performance and promote callus formation.
JOURNAL OF MEDICAL AND BIOLOGICAL ENGINEERING
(2022)
Article
Mathematics
Xue-Feng Han, Chao-Ping Chen
Summary: This paper examines the properties of the remainders in various series representations for the constant pi, including analytical representations, asymptotic expansions and inequalities. Specifically, the paper addresses a series summation problem and provides an integral representation.
REVISTA DE LA REAL ACADEMIA DE CIENCIAS EXACTAS FISICAS Y NATURALES SERIE A-MATEMATICAS
(2022)
Article
Optics
Wenbing Li, Zhuo Yang, Jiali Zhang, Xin Tong, Yuheng Zhang, Bo Liu, Chao Ping Chen
Summary: In this research, a parabola-like gold nanobowtie (PGNB) was designed to confine light waves in a nanoscale gap. The study comprehensively investigated the near-field optical properties of the PGNB structure and found that the geometry of the PGNB strongly influenced its resonance wavelength and scattering/absorption properties.
Article
Optics
Chao Ping Chen, Yuepeng Cui, Ye Chen, Shan Meng, Yang Sun, Chaojie Mao, Qiang Chu
Summary: This article presents a near-eye display with a triple-channel waveguide and chiral liquid crystal gratings. The waveguide divides the field of view into three parts using polarization orthogonality and angular separation. Experimental results show that the display has a diagonal field of view of 90 degrees, eye relief of 10 mm, transmittance of 4.9%, and uniformity of 89%.
Article
Computer Science, Information Systems
Gang Li, Mark McGill, Stephen Brewster, Chao Ping Chen, Joaquin A. Anguera, Adam Gazzaley, Frank Pollick
Summary: This study investigates the detection of cybersickness in virtual reality (VR) and finds that it impairs cognitive control ability. The study also reveals the involvement of the human vestibular network in cybersickness.
IEEE JOURNAL OF BIOMEDICAL AND HEALTH INFORMATICS
(2022)
Article
Mathematics
Xue-Feng Han, Chao-Ping Chen
Summary: In this paper, we study series for 1/π and obtain the asymptotic expansion of the remainder, as well as the recursive relation for the coefficients in the expansion. We also provide the upper and lower bounds of Rn and the approximate value of π.
EXPOSITIONES MATHEMATICAE
(2022)
Article
Optics
Qinghao Guo, Shanwen Zhang, Jun Zhang, Chao Ping Chen
Summary: We propose a single-layer color echelle grating combined optical waveguide structure for augmented-reality display. By using echelle gratings with super-wavelength periodic scale as in-coupling, relay, and out-coupling elements, we achieve the combined propagation of three light beams in the waveguide. The deflection of beam direction between gratings is achieved by conical diffraction generated by the inclined grating, resulting in dual-channel one-dimensional pupil dilation of the original image and a field-of-view angle of 18.9 degrees x 36.87 degrees.
Editorial Material
Optics
Chao Ping Chen, Ni Chen, Sin-Doo Lee, Gang Li, Yasuhiro Takaki, Frank Wyrowski
Summary: In recent years, there has been a growing interest and investment in augmented/virtual reality (AR/VR) in both the tech and academic communities, leading to a new wave of innovations. To cover the latest advances in this field related to optics and photonics, a feature issue was launched. In addition to the publication of 31 research articles, this introduction provides readers with behind-the-issue stories, submission statistics, reading guides, author biographies, and editors' perspectives.
Article
Green & Sustainable Science & Technology
Liujun Li, Chao Ping Chen, Lijun Wang, Kai Liang, Weiyue Bao
Summary: Modern education has made significant progress with the introduction of advanced devices and technologies. We explore the use of artificial intelligence in education by analyzing classroom behavior using AI devices. By applying lightweight models to embedded devices, we achieve real-time emotion recognition and provide teachers with timely feedback on students' learning status, leading to better teaching results.
Article
Computer Science, Interdisciplinary Applications
Shuibin Ni, Thanh-Tin P. Nguyen, Ringo Ng, Mani Woodward, Susan Ostmo, Yali Jia, Michael F. Chiang, David Huang, Alison H. Skalet, J. Peter Campbell, Yifan Jian
Summary: A new concept of panoramic retinal optical coherence tomography (OCT) imaging system with a wide field of view is introduced. This system uses a contact imaging approach to achieve faster and more efficient retinal imaging, along with measurement of axial eye length. The handheld panretinal OCT imaging system allows earlier recognition of peripheral retinal disease and offers significant value in both clinical ophthalmology and basic vision science.
IEEE TRANSACTIONS ON MEDICAL IMAGING
(2023)
Article
Mathematics, Applied
Chao -Ping Chen, Branko Malesevic
Summary: In this paper, sharp inequalities for trigonometric functions are established, including the Wilker inequality. The improved and generalized results prove that the inequalities hold for certain values of x and n, with the best possible constants determined. The formulas involve Bernoulli numbers and factorial calculations.
Article
Mathematics, Applied
Wei Wang, Chao-Ping Chen
Summary: This article presents an important result in Apery's proof of the irrationality of zeta(3) by introducing a rapidly convergent series. The asymptotic expansion of (-1)^nRn is obtained and the upper and lower bounds of (-1)^nRn are established based on the obtained result. Finally, an approximate value of zeta(3) is given using these bounds.
JOURNAL OF MATHEMATICAL INEQUALITIES
(2023)
Article
Optics
Ning Xi, Jiaxun Ye, Chao Ping Chen, Qiang Chu, Haiyang Hu, Seak Pang Zou
Summary: We propose an implantable metaverse with retinal prostheses that work in tandem with bionic vision processing. Our approach differs from conventional retinal prostheses by rearranging electrodes to match the distribution of ganglion cells. To emulate human vision, we develop a scheme for bionic vision processing that visualizes monocular image, binocular image fusion, and parallax-induced depth map on a three-dimensional eye model.
