Results 31 to 40 of about 93,816 (297)

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

Advanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +1 more source

Attosecond streaking of photoelectron emission from disordered solids

, 2014
Attosecond streaking of photoelectrons emitted by extreme ultraviolet light has begun to reveal how electrons behave during their transport within simple crystalline solids.
Arrell, C. A., Barthelmess, M., Fabris, D., Hengster, J., Ibrahimkutty, S., Lei, D. Y., Maier, S. A., Marangos, J. P., Okell, W. A., Rahmani, M., Seiler, A., Sonnefraud, Y., Stankov, S., Tisch, J. W. G., Uphues, Th., Witting, T.   +15 more
core   +1 more source

Guiding mechanisms in dielectric-core photonic-crystal optical waveguides [PDF]

, 2001
We show that the main guiding mechanisms in dielectric-core photonic crystal optical waveguides are total internal reflection and distributed Bragg reflection.
Adibi, Ali, Lee, Reginald K., Scherer, Axel, Xu, Yong, Yariv, Amnon   +4 more
core   +1 more source

Improving the Manufacturability of Low-Temperature GaN Ohmic Contact by Blocking the Fluorine Ion Injection

IEEE Journal of the Electron Devices Society
Stabilizing the CMOS-compatible low-temperature Au-free GaN Ohmic contact is a critical work that determines the performance and yield of GaN power HEMTs in mass production.
Tong Liu, Xiangdong Li, Zhanfei Han, Lili Zhai, Junbo Wang, Shuzhen You, Jincheng Zhang, Jie Zhang, Zhibo Cheng, Yuanhang Zhang, Qiushuang Li, Yue Hao   +11 more
doaj   +1 more source

Ultra High Q and Widely Tunable Mie Resonance Nanofilter at Telecom Wavelengths

IEEE Photonics Journal, 2021
Mie resonators offer a novel way for the subwavelength localization of light, showing large local field enhancement without metal optical absorption. In this paper, an ultra-high quality factor Q and widely tunable Mie resonance nanofilter at telecom ...
Danyang Yao, Yong Zhang, Yan Huang, Yan Liu, Genquan Han, Yue Hao   +5 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Effects of hydrogen pressure on hydrogenated amorphous silicon thin films prepared by low-temperature reactive pulsed laser deposition

, 2016
We deposit intrinsic hydrogenated amorphous silicon (a-Si:H) thin films by reactive pulsed laser deposition, for various hydrogen pressures in the 0-20 Pa range, at a low deposition temperature of 120C, and investigate the hydrogen incorporation ...
Kandyla, M., Kompitsas, M., Mellos, A., Palles, D.   +3 more
core   +1 more source

Van der Waals β-Ga2O3 thin films on polycrystalline diamond substrates

Nature Communications
The self-heating effect in wide bandgap semiconductor devices makes epitaxial Ga2O3 on diamond substrates crucial for thermal management. However, the lack of wafer-scale single-crystal diamond and severe lattice mismatch limit its industrial application.
Jing Ning, Zhichun Yang, Haidi Wu, Xinmeng Dong, Yaning Zhang, Yufei Chen, Xinbo Zhang, Dong Wang, Yue Hao, Jincheng Zhang   +9 more
doaj   +1 more source

Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation

Advanced Engineering Materials, EarlyView.
ZnS‐MXene‐TiO2 nanocomposite heterojunction for photocatalytic decomposition of this methylene blue dye (MB) greatly improves light absorption, charge separation, and active site area. Two‐dimensional MXene forms nanocomposites by easily combining them with 0D (quantum dots), 1D (tube and wire), 2D (plane and sheet), and 3D (particle and lamellar ...
Latiful Kabir, Dohyun Kim, Minho Song, Jae Doc Na, Young Jun Joo, Kwang Youn Cho, Karna Wijaya, Won‐Chun Oh   +7 more
wiley   +1 more source

Two-dimensional photonic crystal polarizer

, 1999
A novel polarizer made from two-dimensional photonic bandgap materials was demonstrated theoretically. This polarizer is fundamentally different from the conventinal ones.
Bowden C M, Brown E R, Joannopoulos J D, Kurizki G, Qiao Feng, Soukoulis C M, Soukoulis C M, Wan Jun, Zhang Chun, Zi Jian   +9 more
core   +1 more source