Article
Chemistry, Physical
Uhood J. Al-Hamdani, Qusay M. A. Hassan, Ahmed M. Zaidan, H. A. Sultan, Kawkab Ali Hussain, C. A. Emshary, Zainab T. Y. Alabdullah
Summary: In this study, a liquid crystal compound was synthesized and characterized. The nonlinear optical properties and all-optical switching performance were investigated using optical and chemical methods.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Optics
Azahara Almagro-Ruiz, Salvador Torres-Peiro, Hector Munoz-Marco, Marina Cunquero, Gustavo Castro-Olvera, Romain Dauliat, Raphael Jamier, Oleksiy Shulika, Rosa Romero, Paulo T. Guerreiro, Miguel Miranda, Helder Crespo, Philippe Roy, Pablo Loza-Alvarez, Pere Perez-Millan
Summary: Temporally coherent supercontinuum sources generated using a monolithic fiber-optic configuration are presented. The configuration offers unparalleled robustness, efficiency, and cost-effectiveness. The ultra-broadband spectra and ultra-short pulse durations make these sources powerful tools for multispectral and multimodal nonlinear microscopy.
Article
Chemistry, Multidisciplinary
Chao Chen, Yan Chen, Hao Yao, Qingrui Song, Chong Jia, Yachao Zhang
Summary: This study introduces an electric-powered dual-mode slippery lubricant-impregnated porous surface (DM-SLIPS) that can repel liquid and control solar energy input. It utilizes paraffin wax, laser-ablated polytetrafluoroethylene (LA-PTFE), and silver nanowire thin-film heater for fast electrical response and homogeneous Joule heating to remove surface-frozen ice.
Article
Engineering, Electrical & Electronic
Cai Wen, Yan Huang, Le Zheng, Weijian Liu, Timothy N. Davidson
Summary: This article proposes a transmit waveform design technique for dual-function radar-communication systems. The design focuses on optimizing the integrated main-lobe-to-sidelobe ratio and waveform similarity metric while ensuring a predefined signal-to-interference-plus-noise ratio for each communication user. Practical constraints such as per-antenna power and peak-to-average-power ratio are also considered. Numerical examples show that the proposed technique provides a superior performance tradeoff between sensing and communication compared to conventional nonlinear precoding.
IEEE TRANSACTIONS ON SIGNAL PROCESSING
(2023)
Article
Optics
Stanislav O. Gurbatov, Vladislav Puzikov, Artem Cherepakhin, Eugeny Mitsai, Natalie Tarasenka, Alexander Shevlyagin, Aleksandr Sergeev, Sergei A. Kulinich, Aleksandr A. Kuchmizhak
Summary: In this study, a one-step synthesis of hybrid Au@Si nanomaterial with unique composition and morphology was achieved using scalable and high-performing methods, enabling the integration of optical and all-dielectric concepts. The resulting nanomaterial exhibits the capability to efficiently absorb and enhance incident radiation across a broad spectral range, showing promise for plasmon-mediated optical effects amplification.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Jie Jian, Shiyuan Wang, Qian Ye, Fan Li, Guirong Su, Wei Liu, Changzhen Qu, Feng Liu, Can Li, Lichao Jia, Andrei A. Novikov, Vladimir A. Vinokurov, Daniel H. S. Harvey, Dmitry Shchukin, Dennis Friedrich, Roel van de Krol, Hongqiang Wang
Summary: This study demonstrates the successful enhancement of photoelectrode activity and stability by creating an SCLJ with a unique configuration of dual interfacial layers. The experimental results show that the bespoke dual interfacial layers effectively inhibit photocorrosion and improve charge-carrier kinetics, resulting in significant improvements in the performance of the photoelectrode.
ADVANCED MATERIALS
(2022)
Review
Physics, Applied
Xin-Tao He, Chao-Heng Guo, Guo-Jing Tang, Meng -Yu Li, Xiao-Dong Chen, Jian-Wen Dong
Summary: By designing a dual-polarization all-dielectric valley photonic crystal, a topological polarization beam splitter is successfully implemented, demonstrating topologically nontrivial dual-polarization band gaps, as well as topological valley-dependent edge modes and transport. Finally, an innovative harpoon-shaped polarization beam splitter is proposed, showcasing good functionality in polarization separation.
PHYSICAL REVIEW APPLIED
(2022)
Article
Crystallography
Yasuki Sakurai, Masashi Nishitateno, Masahiro Ito, Kohki Takatoh
Summary: Liquid-crystal-on-silicon spatial light modulators are commonly used in laser processing applications, with the newly developed UV durable version having a significantly longer lifetime at 355nm wavelength. The investigation into the durability of polymerization inhibitor mixed liquid crystal aims to further extend the lifespan of the device.
Article
Optics
Boquan Ren, Hongguang Wang, Yaroslav V. Kartashov, Yongdong Li, Yiqi Zhang
Summary: Higher-order topological insulators can support topologically protected states with lower dimensionality than the structure itself. This study presents the bifurcation of nonlinear photonic disclination states in disclination lattices with pentagonal or heptagonal cores. Nonlinearity allows for tuning the states' location and affects their shapes. The stability of these nonlinear topological states depends on the structure of the disclination lattice.
Article
Chemistry, Multidisciplinary
Giovanna Palermo, Andrew Lininger, Alexa Guglielmelli, Loredana Ricciardi, Giuseppe Nicoletta, Antonio De Luca, Joon-Suh Park, Soon Wei Daniel Lim, Maryna L. Meretska, Federico Capasso, Giuseppe Strangi
Summary: In this paper, a nanostructured planar-fused silica metalens permeated with a nematic liquid crystal (NLC) and gold nanoparticle solution is presented. The embedded NLCs can be manipulated with external stimuli, enabling reconfigurable optical metasurfaces. The all-optical, dynamic control of the metalens optical response is achieved through thermoplasmonic-induced changes of the NLC solution associated with the nematic-isotropic phase transition.
Article
Automation & Control Systems
Jianzhong Zhu
Summary: The increase of renewable energy sources connected to the grid has increased flexibility requirements in thermal power plant operations. The dynamic behavior of the boiler-turbine unit changes significantly at different operating conditions due to severe nonlinearity and various disturbances. Building uncertainties in modeling make it difficult to definitively understand the changes, hindering control efforts. The proposed dual-mode fuzzy predictive control strategy aims to achieve disturbance suppression and improve nonlinear dynamic behavior in the boiler-turbine unit.
JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS
(2021)
Article
Optics
Akash Kumar Pradhan, Mrinal Sen, Tanmoy Datta
Summary: A silicon Raman laser design utilizing a slotted photonic crystal nanocavity filled with high Raman gain silicon nanocrystal material has been proposed to minimize threshold power and enable optical pumping with a LED. The efficient electroluminescence of the silicon nanocrystal material allows for integration on the same platform, achieving a lasing threshold-power as low as 5 mu W and a modulation bandwidth as high as 1.6 GHz, surpassing conventional Raman lasers by two orders of magnitude.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Xi Yang, Shui-Jing Tang, Jia-Wei Meng, Pei-Ji Zhang, You -Ling Chen, Yun-Feng Xiao
Summary: Liquid-crystal microcavity lasers exhibit extraordinary tunability and sensitivity to external stimuli. In this study, a liquid-crystal microcavity laser operated in the phase transition is demonstrated, showing significant wavelength shift and improved sensitivity for thermal sensing. The phase-transition microcavity laser offers great potential for high-performance sensors, optical modulators, and soft matter photonics.
Article
Optics
Luyang Tong, Changdong Chen, Yangjian Cai, Lina Zhao
Summary: In this study, dual-wavelength picosecond optical vortices are generated directly in an all-solid-state laser. Multiple-wavelength superfast vortices are achieved through nonlinear mirror modelocking. The vortex laser has an average output power of 2.6 W for the fundamental wave and 116 mW for the harmonic wave. The repetition rate is 97.16 MHz, and the pulse width of the fundamental wave is 23.4 ps, with a maximum pulse energy of approximately 26.5 nJ. These results provide valuable insights into compact ultrafast optical vortices with multiple wavelengths.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Optics
Zhiqing Liang, Yanwei Huang, Xiaoxian He, Dongmei Wen, Yingli Wang, Xiangru Wang
Summary: This paper presents a high-speed and high-precision beam steering technology using liquid crystal optical phased array (LC-OPA). The proposed parallel, four-communication access beam deflection antenna based on LC-OPA offers a wide steering range and precise pointing capability. With the use of cascaded liquid crystal polarized grating (LCPG) and a fine tracking subsystem, this antenna achieves a steering resolution of 20 mu rad and covers a range of +/- 12 deg in two dimensions, providing the foundation for simultaneous access of multiple terminals in FSO communication network.
OPTICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Le Zhou, Gang Chen, Wenbo Shen, Cuihong Zhang, Zhang Lanying
Summary: This paper investigates the preparation and optical properties of polymer/liquid crystal composite films based on epoxy resins, polyamine, and thiol monomers. By controlling the functionality of thiol, the composite films achieve good diffusing ability and high visible transmission.
Article
Chemistry, Multidisciplinary
Haonan Lin, Shuaifeng Zhang, Moshin Hassan Saeed, Le Zhou, Hongqi Gao, Junyi Huang, Lanying Zhang, Huai Yang, Jiumei Xiao, Yanzi Gao
Summary: This study systematically investigated the effects of methacrylate monomers with different end groups on the PDLC composite films, and found that introducing specific monomers can improve the morphology and properties of the films. This ultimately led to the optimization of electro-optical performance.
Article
Chemistry, Physical
Bingzhi Liu, Huihui Wang, Wei Gu, Le Zhou, Zhaolong Chen, Yufeng Nie, Congwei Tan, Haina Ci, Nan Wei, Lingzhi Cui, Xuan Gao, Jingyu Sun, Yanfeng Zhang, Zhongfan Liu
Summary: The study introduces an oxygen-assisted CVD strategy to directly synthesize large-scale graphene on glass, significantly increasing graphene domain size. The resulting graphene glass demonstrates record high electrical conductivity and can be used as transparent electrodes for high-performance optical filter devices. This work opens up a new pathway for scalable production and application of high-quality and cost-effective graphene glass materials.
Article
Chemistry, Multidisciplinary
Mohsin Hassan Saeed, Yanzi Gao, Le Zhou, Tingjun Zhong, Shuaifeng Zhang, Chenyue Li, Lanying Zhang, Huai Yang
Summary: The influence of thiol monomer functionality, acrylate crosslinker functionality, and crosslinker chain length on the PDLC film morphology and electro-optical properties was systematically investigated. Adjusting the molecular structure of the polymer matrix can artificially manipulate the polymer morphology and electro-optical properties of PDLC films to find optimal performance.
Article
Optics
Mohsin Hassan Saeed, Shuaifeng Zhang, Meina Yu, Le Zhou, Junyi Huang, Qianfei Feng, Haonan Lin, Xiao Wang, Junmei Hu, Lanying Zhang, Huai Yang
Summary: This study aimed to improve the electro-optical properties of PDLC films by incorporating oxygen heterocycles into the host polymer matrix. By decreasing the thickness of the liquid crystals/polymer composite film, excellent electro-optical properties were achieved, promoting the application of PDLC films in thin-layer liquid crystal displays.
Article
Materials Science, Multidisciplinary
Youjun Fan, Zhonghui Shen, Xinchen Zhou, Zhenkang Dan, Le Zhou, Weibin Ren, Tongxiang Tang, Shanyong Bao, Cewen Nan, Yang Shen
Summary: Flexible strain sensors are essential for various potential intelligent applications. A novel strategy of designing and optimizing a strain sensor by developing topological structure modulated high dielectric elastic nanocomposite is demonstrated, which shows ultrahigh dielectric permittivity and excellent comprehensive electromechanical performance. The strain sensor achieved high signal-to-noise ratio, high positive capacitance response sensitivity, and wide linear range, making it suitable for integrated microsensor arrays for detecting local strain and motion states.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Physics, Applied
Ting Zhou, Le Zhou, Yi-Xuan Liu, Jing-Tong Lu, Shan He, Wei Li, Geng Li, Fang-Zhou Yao, Yang Shen, Ke Wang
Summary: Phase separation of polymer blends can help design high-performance materials with specific mechanical and dielectric properties. Incorporating different poly(methacrylic ester)s in the poly(vinylidene fluoride-co-hexafluoropropylene) matrix improves the performance of the film materials, with the blended films containing poly(isobutyl methacrylate) showing enhanced Young's modulus and elongation. The excellent plasticity is attributed to the interfacial regions between the two phases. Furthermore, phase separation design leads to higher Weibull breakdown strength and better energy storage density.
JOURNAL OF APPLIED PHYSICS
(2022)
Correction
Physics, Applied
Ting Zhou, Le Zhou, Yi-Xuan Liu, Jing-Tong Lu, Shan He, Wei Li, Geng Li, Fang-Zhou Yao, Yang Shen, Ke Wang
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Yuanfeng Liu, Le Zhou, Yongzheng Wen, Yang Shen, Jingbo Sun, Ji Zhou
Summary: In this work, a cylindrical vector optical vortex beam generation is achieved by utilizing the naturally existing circular anisotropy in a spherulite formed by molecular self-assembly. This strategy shows promising opportunities for the applications of spherulites in the generation of structured lights and modulations of both the polarization and the angular momentum.
Article
Chemistry, Multidisciplinary
Binzhou Sun, Penghao Hu, Xumin Ji, Mingzhi Fan, Le Zhou, Mengfan Guo, Shan He, Yang Shen
Summary: In this study, PEI-based nanocomposites containing SiO2 nanoparticles were fabricated by solution casting, showing improved electrical conductivity and breakdown strength, especially at high temperatures. The PEI/SiO2-NPs nanocomposite exhibited superior dielectric energy storage performance under high temperature conditions.
Article
Chemistry, Multidisciplinary
Weibin Ren, Minzheng Yang, Le Zhou, Youjun Fan, Shan He, Jiayu Pan, Tongxiang Tang, Yao Xiao, Ce-Wen Nan, Yang Shen
Summary: To meet the demand for miniaturized electronic devices and power systems under harsh environments, ultrasonic spray-coating (USC) can be used to produce scalable high-quality ultrathin high-temperature dielectric films. These films have high glass transition temperature and large bandgap, enabling them to provide high discharge energy density at high temperatures.
ADVANCED MATERIALS
(2022)
Review
Crystallography
Le Zhou, Sijie Liu
Summary: This review summarizes the structures, principles, and characteristics of several devices that have potential application in controllable anti-peeping displays. The advantages of LCs/polymer composite films, including long life, low power consumption, and energy saving, make them the mainstream technology for next-generation viewing angle-controllable displays.
Article
Chemistry, Multidisciplinary
Minzheng Yang, Feng Yuan, Wenxiong Shi, Weibin Ren, Mengfan Guo, Ouyang Chen, Le Zhou, Nannan Sun, Yao Xiao, Erxiang Xu, Xuanhe Zhang, Yan Wei, Xuliang Deng, Cewen Nan, Xun Wang, Yang Shen
Summary: Polymer dielectrics with high breakdown strength and energy density are in demand but limited by low dielectric constant and high loss at elevated temperatures. In this study, sub-nanowires of hydroxyapatite were incorporated into a polyetherimide matrix, resulting in enhanced dielectric properties and high-temperature stability. The sub-nanowires induced increased mobility of polymer chains and formed dense traps for charge carriers. This research expands the scope of polymer-inorganics composite dielectrics and provides a novel strategy for high-performance polymer dielectrics.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Le Zhou, Sijie Liu, Tingjun Zhong
Summary: Optical diffusers made of polymer composite materials are vital for various photonic and optoelectronic applications such as LCDs, OLEDs, and solar cells. This article provides a comprehensive overview of different types of optical diffusers, the theory and measurement of light scattering, fabrication methods, and recent developments in applications such as PUFs, random number generators, stretchable radiative coolers, deep neural networks, lensless cameras, and 3D displays. Additionally, tunable optical diffusers stimulated by various stimuli have gained significant attention for their potential in stretchable optoelectronics and optomechanics.
Review
Physics, Applied
Le Zhou, Shuo Zhao, Ping Xie, Xiang Miao, Sijie Liu, Nannan Sun, Mengfan Guo, Zongqi Xu, Tingjun Zhong, Yang Shen
Summary: With the increasing demand for energy, efficient and stable energy storage has become an urgent research topic. Polymer dielectrics have emerged as ideal materials for electrostatic capacitors due to their advantages of light weight, easy fabrication, low cost, and high breakdown strength. However, the limitations of current polymer dielectrics in terms of energy density, breakdown field intensity, charge and discharge efficiency, and dielectric loss restrict the development of compact and reliable electronic power technology. This review summarizes and compares various material systems, such as polymer nanocomposites and polymer/small molecule composites, and provides suggestions for future research.
APPLIED PHYSICS REVIEWS
(2023)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
