Article
Optics
Harrison Lees, Weijie Gao, Withawat Withayachumnankul
Summary: All-silicon effective-medium-clad waveguides are a promising candidate for integrated terahertz platforms. In this work, a low-loss, high-efficiency waveguide crossing design is proposed, showing good performance in the 220-330 GHz frequency range.
Article
Optics
Cheng Chen, Xianmeng Zhao, Shengjie Tang, Xiaoping Liu, Haibin Lv
Summary: In this work, a low-cross-talk half-wavelength pitch silicon waveguide array is proposed and experimentally demonstrated. The experimental results show that this array exhibits strong cross-talk suppression and a wide bandwidth, offering a promising platform for studying integrated optical phased arrays for solid-state LIDAR with a large field of view.
Article
Multidisciplinary Sciences
Peter A. Spring, Shuxiang Cao, Takahiro Tsunoda, Giulio Campanaro, Simone Fasciati, James Wills, Mustafa Bakr, Vivek Chidambaram, Boris Shteynas, Lewis Carpenter, Paul Gow, James Gates, Brian Vlastakis, Peter J. Leek
Summary: This paper reports high qubit coherence, low cross-talk, and single-qubit gate errors in a superconducting circuit architecture that can be tiled into a two-dimensional lattice of qubits. The architecture integrates an inductively shunted cavity enclosure with non-galvanic out-of-plane control wiring and qubits and resonators fabricated on opposing sides of a substrate. Experimental results demonstrate the feasibility of the design, and simulations predict that the enclosed qubits will maintain a clean electromagnetic environment at arbitrary scale.
Article
Optics
Luyao Wang, Shuguang Li, Xiaojian Meng, Ying Guo, Zenghui Li
Summary: A novel high and low refractive index double-ring structure in few-mode multicore fibers (FM-MCFs) is proposed to suppress intercore and intermodal cross talk. Numerical analysis shows that the HL-DR structure contributes significantly to meeting the XT requirements in FM-MCFs, leading to the design of a high performance seven-core fiber.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2021)
Article
Optics
Humaira Zafar, Bruna Paredes, Juan Villegas, Mahmoud Rasras, Mauro Fernandes Pereira
Summary: An efficient, dual-polarization silicon waveguide array with low insertion losses and negligible crosstalks for both TE and TM polarizations has been reported using S-shaped adiabatically bent waveguides.
Article
Computer Science, Information Systems
Nicola Lusardi, Nicola Corna, Fabio Garzetti, Simone Salgaro, Angelo Geraci
Summary: The paper investigates the issue of electromagnetic interference between channels, focusing on the impact of cross-talk on the timing parameters in TDC measurements. A systematic analysis based on Code-Density Test is utilized to detect and categorize the sources of cross-talk, leading to proposed solutions to minimize the different causes.
Article
Optics
Zhenzhuo Zhang, Jing Yang, Feng Liang, Ping Chen, Zongshun Liu, Degang Zhao
Summary: The performance of InGaN-based blue-violet laser diodes with different waveguide structures was investigated through simulation and experimental methods. Theoretical calculations showed that an asymmetric waveguide structure can reduce the threshold current and improve the slope efficiency. A laser diode with a thickness of 80 nm In0.03Ga0.97N lower waveguide and 80 nm GaN upper waveguide was fabricated and achieved an optical output power of 4.5 W at an operating current of 3 A and a lasing wavelength of 403 nm under continuous wave injection at room temperature. The threshold current density was 0.97 kA/cm2 and the slope efficiency was approximately 1.9 W/A.
Article
Materials Science, Multidisciplinary
Yanhui Zhang, Yunkai Zhou, Li-Min Wang, Stefano Sanvito
Summary: Metastability engineering of high entropy alloys has the potential to expand the alloy-design window and improve the performance of alloys. A detailed investigation of the energetic, structural, and chemical complexity of the Ti-Zr-Hf-Ta system reveals the evolution of the potential energy landscape and the configurational density of states. The connection between glass physics and metastability engineering of HEAs shows promising theoretical prospects.
Editorial Material
Multidisciplinary Sciences
Deepak Srivastava
Summary: The cytokine meteorin-like (METRNL) has been found to improve cardiac function in mice after a heart attack.
Editorial Material
Biochemical Research Methods
Vivien Marx
Summary: Chemical modifications to DNA, histones and RNA play a crucial role in making functional changes. Scientists are actively studying methods to monitor and understand these modifications and their interactions.
Article
Nanoscience & Nanotechnology
Xinwei Guo, Xuemin Hu, Shuyu Zhang, Jialin Yang, Chuyao Chen, Jingwen Zhang, Hengze Qu, Shengli Zhang, Wenhan Zhou
Summary: The advantages of 2D material Be2C in alleviating the issues of short-channel effect and power dissipation in field-effect transistors (FETs) are discussed in this study. The investigation reveals that Be2C has planar anticonventional bonds and a direct bandgap, and its p-type FETs can achieve remarkable performance, exceeding the demands of the International Roadmap for Devices and Systems. The findings demonstrate the tremendous potential of 2D Be2C for the next generation of high-performance and low-power electronics applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Sven Klein, Peer Baermann, Olga Fromm, Kristina Borzutzki, Jakub Reiter, Quan Fan, Martin Winter, Tobias Placke, Johannes Kasnatscheew
Summary: This study found that increasing the cell voltage of lithium ion batteries to above 4.3V can enhance specific energy, but conventional poly-crystal cathode active materials may fail at 4.5V. On the other hand, CAMs based on single-crystals show improved cycle life and reduced failure and cross-talk at high voltages.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Multidisciplinary Sciences
Colin R. Twomey, Gareth Roberts, David H. Brainard, Joshua B. Plotkin
Summary: Names for colors vary widely across languages, but color categories are remarkably consistent. The study reveals that communicative needs for colors are not uniform among different languages, and are correlated with the colors of salient objects in the environment.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Engineering, Electrical & Electronic
Peixuan Tian, Chunying Guan, Ziyang Xiong, Shan Gao, Peng Ye, Jing Yang, Xuelan He, Jinhui Shi, Libo Yuan
Summary: A gas pressure sensor composed of cascaded Fabry-Perot interferometers (FPIs) based on Vernier effect was demonstrated. The sensor achieves a high gas pressure sensitivity of -44.31 nm/MPa due to the Vernier amplification effect and a very low temperature cross-sensitivity of -0.6 KPa/celsius. It has been proved to have high sensitivity, wide measurement range, small temperature crosstalk, good robustness, and low production cost.
OPTICAL FIBER TECHNOLOGY
(2023)
Article
Materials Science, Coatings & Films
Yang Yu, Zhuoya Ren, Qianqian Shang, Jiangang Han, Lei Li, Jianqiang Chen, Sandile Fakudze, Ziqi Tian, Chengguo Liu
Summary: The use of imidazolium-based ionic liquids can promote the graphitization of biochar at low temperatures, forming high-quality graphitic carbon. The incorporation of intact imidazolium rings plays a critical role in the formation of graphitic structure and nitrogen doping, improving the sodium storage performance of the material.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Optics
Chenghao Feng, Richard Soref, Ray T. Chen, Xiaochuan Xu, Wei Jiang
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2018)
Article
Engineering, Electrical & Electronic
Rui Zhu, Xin Zhou, Nan Yang, Lemeng Leng, Wei Jiang
IEEE PHOTONICS JOURNAL
(2018)
Article
Engineering, Electrical & Electronic
Daojing Zhai, Rui Zhu, Yogesh Jaluria, Wei Jiang
IEEE PHOTONICS TECHNOLOGY LETTERS
(2019)
Article
Optics
Robert Gatdula, Siamak Abbaslou, Ming Lu, Aaron Stein, Wei Jiang
Article
Optics
Peiyan Zhao, Zhaobang Zeng, Nan Yang, Qianyi Gao, Bo Tang, Zhihua Li, Jiang Yan, Wei Jiang
Article
Engineering, Electrical & Electronic
Lemeng Leng, Minfeng Jin, Zhongzhi Lin, Chenbin Zhang, Ding Ding, Wei Jiang
IEEE PHOTONICS JOURNAL
(2020)
Article
Physics, Applied
Le-Meng Leng, Yue Shao, Pei-Yan Zhao, Guang-Fan Tao, Shi-Ning Zhu, Wei Jiang
Summary: High-density low-crosstalk waveguide superlattices can help shrink the pitch of optical phased arrays to half-wavelength, balancing transverse and longitudinal coherence to achieve ideal beam characteristics. Large supercells offer more design freedom for finding desirable superlattice structures.
PHYSICAL REVIEW APPLIED
(2021)
Article
Chemistry, Multidisciplinary
Zhaobang Zeng, Ding Ding, Qianyi Gao, Nan Yang, Peiyan Zhao, Wei Jiang
Summary: Research characterizes the correlation between reflection and modulation characteristics, finding a decrease in correlation at higher bit rates. Device physics analysis reveals how nanoscale variation of material properties affects the performance of modulation devices.
Article
Optics
Zhaobang Zeng, Lemeng Leng, Peiyan Zhao, Chenbin Zhang, Ding Ding, Dun Mao, Tingyi Gu, Wei Jiang
Summary: In a parallel-coupled dual-racetrack modulator, interference between resonant light in two resonators is utilized to achieve high extinction ratios for high-speed modulation. The modulator also enables the generation of four-level pulse-amplitude modulation without an external DAC.
Article
Optics
Lemeng Leng, Zhaobang Zeng, Guihan Wu, Zhongzhi Lin, Xiang Ji, Zhiyuan Shi, Wei Jiang
Summary: Phase calibration for optical phased arrays is a key process. Traditional iterative optimization algorithms are tedious, while deep-learning-based technology offers an alternative, though phase ambiguities severely affect accuracy.
PHOTONICS RESEARCH
(2022)
Article
Engineering, Electrical & Electronic
Minfeng Jin, Guihan Wu, Xin Zhou, Qiuyang Jiang, Zhongzhi Lin, Wei Jiang
Summary: We propose and experimentally demonstrate a Mach-Zehnder silicon thermo-optic switch based on a parabolic multimode interference coupler. The parabolic structure is designed to achieve extremely small imbalance of output power and good fabrication tolerance. In experiment, high average extinction ratios over 35 dB and maximum values over 40 dB can be achieved from 1520 nm to 1580 nm. The proposed parabolic MMI has a small footprint of only 2.4 μm x 9.5 μm.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2023)
Proceedings Paper
Instruments & Instrumentation
Zhongzhi Lin, Minfeng Jin, Chenbin Zhang, Ding Ding, Liang Zhang, Nan Yang, Yechao Bai, Wei Jiang
OPTOELECTRONIC DEVICES AND INTEGRATION IX
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Zhaobang Zeng, Peiyan Zhao, Nan Yang, Qianyi Gao, Bo Tang, Zhihua Li, Jiang Yan, Wei Jiang
2020 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2020)
Proceedings Paper
Optics
Peiyan Zhao, Zhaobang Zeng, Nan Yang, Bo Tang, Zhihua Li, Jiang Yan, Xiangning Chen, Wei Jiang
ELEVENTH INTERNATIONAL CONFERENCE ON INFORMATION OPTICS AND PHOTONICS (CIOP 2019)
(2019)
Proceedings Paper
Nanoscience & Nanotechnology
Ying Wang, Xin Zhou, Qian Chen, Yue Shao, Xiangning Chen, Qingzhong Huang, Wei Jiang
2017 INTERNATIONAL CONFERENCE ON OPTICAL INSTRUMENTS AND TECHNOLOGY - MICRO/NANO PHOTONICS: MATERIALS AND DEVICES
(2017)
