Article
Chemistry, Multidisciplinary
Shuo Yuan, Jijun Feng, Zhiheng Yu, Jian Chen, Haipeng Liu, Yishu Chen, Song Guo, Fengli Huang, Ryoichi Akimoto, Heping Zeng
Summary: This article proposes a silicon nanowire-assisted AWG structure that achieves high uniformity and low insertion loss. By comparing the effect of nanowire number and shape, it is found that double nanowires provide the best performance. Compared to conventional 8- and 16-channel AWGs, the presented structure significantly improves non-uniformity without increasing size.
Article
Chemistry, Multidisciplinary
Ruixuan Yi, Xutao Zhang, Fanlu Zhang, Linpeng Gu, Qiao Zhang, Liang Fang, Jianlin Zhao, Lan Fu, Hark Hoe Tan, Chennupati Jagadish, Xuetao Gan
Summary: This article reports a simple and facile integration strategy of a laser source in passive photonic integrated circuits using semiconductor nanowires embedded in waveguides. The method is applicable to other PIC platforms and promises CMOS compatibility.
Article
Nanoscience & Nanotechnology
Zhongjie He, Xiaoqian Li, Hongni Wang, Fangfang Su, Dechao Wang, Dongdong Yao, Yaping Zheng
Summary: A simple strategy was proposed to construct graphene aerogels (GAs) with an adjustable structure, and the properties of GAs were significantly improved by adjusting the microstructure.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Alejandro Garcia-Miranda Ferrari, Jessica L. Pimlott, Michael P. Down, Samuel J. Rowley-Neale, Craig E. Banks
Summary: The research demonstrates the potential of additively manufactured supercapacitor platforms using graphene and polylactic acid filaments, with the ability to electrodeposite metals/metal oxides like MoO2 for high capacitance performance in various electrolytes. This represents a significant advancement in unlocking AM's potential for device level capacitance architectures.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Da Teng, Kai Wang
Summary: The study investigates the waveguiding of terahertz surface plasmons by a GaAs strip-loaded graphene waveguide using effective-index method and finite element method. It examines modal properties such as effective mode index, modal loss, cut-off characteristics of higher order modes, and shows the potential for tuning the fundamental mode by modulating the Fermi level. Additionally, it validates the accuracy of the effective-index method and studies crosstalk between adjacent waveguides for determining device integration density.
Review
Engineering, Environmental
Qingsong Cheng, Hebing Pei, Qian Ma, Ruibin Guo, Nijuan Liu, Zunli Mo
Summary: This paper reviews the progress of chiral graphene materials for enantiomer separation, discussing their synthesis strategies, separation mechanism, and applications, as well as exploring related issues and future prospects.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Lufang Liu, Alexey V. Krasavin, Jialin Li, Linjun Li, Liu Yang, Xin Guo, Daoxin Dai, Anatoly V. Zayats, Limin Tong, Pan Wang
Summary: Researchers have developed electrically driven nanoscale optical sources based on metal-insulator-graphene tunnel junctions, with broadband spectral characteristics. These sources utilize electrically driven inelastic tunneling in a silver nanowire integrated with graphene, which excites plasmonic modes in the junction and propagates towards the junction edge with low loss, coupling efficiently to a nanowire waveguide.
Article
Physics, Multidisciplinary
Hanze Liu, Cheng-Lin Bai, Xiangpeng Xin
Summary: The combination of symmetry integration and separation of variables method is used to handle the von Karman system, resulting in new types of explicit solutions to the nonlinear system. Furthermore, exact solutions to a nonlinear ordinary differential equation system are investigated using the complete classification method, leading to the presentation of explicit solutions to the VK system.
Article
Chemistry, Multidisciplinary
Min-Woo Kim, Sun-Wook Park, Kyong-Tae Park, Byung-Ju Min, Ja-Hyun Ku, Jin-Yong Ko, Jin Sik Choi, You-Shin No
Summary: This study presents an all-graphene-contact, electrically pumped, transferrable NW source that overcomes practical challenges of on-demand light sources in a photonic integrated circuit (PIC). The highly accurate microtransfer printing technique is employed to fabricate this source, and electroluminescence spectroscopy confirms strong emission and waveguiding properties. The precise integration of a single NW device into an existing photonic waveguide is achieved, supported by three-dimensional numerical simulations.
Article
Chemistry, Multidisciplinary
Jing Liang, Xin Zhang, Tian-Qi Liu, Xu-Dong Gao, Wen-Bin Liang, Wei Qi, Li-Juan Qian, Zhan Li, Xi-Meng Chen
Summary: This study developed a room-temperature technology for separating deuterium water (D2O) from natural water using porous graphene (PG) nanosheets sandwiched between graphene oxide (GO) membranes. The method achieved simple, efficient, and low-cost separation of D2O and H2O by pressure-driven filtration. The method showed a high rejection rate of D2O and excellent structural and cycling stability, making it suitable for large-scale industrial production and removal of D2O.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yihua Li, Jiao Jiao, Qidong Wu, Qi Song, Wancen Xie, Baicang Liu
Summary: Graphene oxide (GO) composite membranes have been widely used in membrane modification due to their excellent properties, such as huge specific surface area, good electrical conductivity, good hydrophilicity, and various functional groups. The addition of GO in membranes has been proven to improve water permeability, molecular selectivity, membrane fouling mitigation, and contaminants decomposition. Recently, the development of laminated GO in membranes has achieved both high selectivity and high water permeability, overcoming the limitations of conventional polymeric or inorganic membranes. This review systematically summarizes the applications of GO composite membranes in three highlighted areas of environmental fields: desalination, gas separation, and wastewater treatment, and discusses the challenges faced with GO composite membranes.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Moon-Jung Yong, Byunghwa Kang, Un Yang, Seung Soo Oh, Jung Ho Je
Summary: We developed a mechanically robust and thin nanowire waveguide for in situ monitoring of pH dynamics in living cells. We observed organelle-exclusive pH homeostasis and stimuli-selective pH regulations, and discovered different pH variations in the nucleus during the mammalian cell cycle.
Article
Mechanics
P. Vidal, L. Aboudou Ibouroi, L. Gallimard, I Ranc
Summary: A multi-resolution strategy is developed for solving unsteady diffusion problems with arbitrary heat source location, based on a variable separation approach. The method simplifies the process of changing sets of parameters by reusing an initial basis, and addresses the derived non-linear problem through solving four 1D problems iteratively. Results show accurate solutions for laminated beams under different loadings using this approach.
COMPOSITE STRUCTURES
(2021)
Article
Nanoscience & Nanotechnology
Richa Mitra, Manas Ranjan Sahu, Aditya Sood, Takashi Taniguchi, Kenji Watanabe, Hadas Shtrikman, Subroto Mukerjee, A. K. Sood, Anindya Das
Summary: Thermoelectric measurements show anomalous behavior in monolayer graphene-nanowire heterostructures, with large oscillations as a function of doping concentration. The nanowire acts as a local heater in the graphene channel, inducing a thermoelectric voltage. The oscillations are attributed to modified density of states in monolayer graphene caused by the nanowire's electrostatic potential.
Article
Nanoscience & Nanotechnology
Jian-Ping Liu, Wei-Lin Wang, Fang Xie, Chen Li, Xia Zhou, Ji-Hai Yu, Si-Qi Li, Ling-Ling Wang
Summary: A directional coupler consisting of a cylindrical silicon nanowire waveguide and a metal-based cylindrical hybrid plasmon waveguide is proposed in this paper, showing low insertion loss, high coupling efficiency, and extinction ratio. This coupler has the potential application in signal exchanging and mode switching between dielectric and plasmon waveguides in photonic integrated circuits.
Article
Optics
Wenrui Xue, Xi Chen, Yanling Peng, Rongcao Yang
Article
Engineering, Electrical & Electronic
Wenrui Xue, Ya-Nan Guo, Jiao Zhang, Wenmei Zhang
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2009)
Article
Optics
Wenrui Xue, Ya-Nan Guo, Peng Li, Wenmei Zhang
Article
Optics
Ya-nan Guo, Wenrui Xue, Rongcao Yang, Wenmei Zhang
Article
Engineering, Electrical & Electronic
WR Xue, GS Zhou, Y Xiao, RC Yang
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2005)
Article
Engineering, Electrical & Electronic
WR Xue, GS Zhou, Y Mao, RC Yang
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2004)
Article
Engineering, Electrical & Electronic
WR Xue, GS Zhou, ZH Li, SQ Guo
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2000)
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)