Results 61 to 70 of about 1,717 (189)

Higher-Order Matrix Exponential Perfectly Matched Layer Scheme With Sub-Gridding Technique Based on the Factorization Approximate Crank–Nicolson Algorithm

IEEE Open Journal of Antennas and Propagation
Although finite difference time-domain (FDTD) algorithms are potentially applicable to broadband wave propagation and radiation problems, various problems related to the absorbing boundary condition and complex structural meshing limit the accuracy of ...
Weikang Si, Hao Lei, Haolin Jiang, Yongjun Xie, Weilong Wang, Peiyu Wu   +5 more
doaj   +1 more source

Design and optimization of photonic crystal fiber based sensor for gas condensate and air pollution monitoring

Photonic Sensors, 2017
In this paper, a hexagonal shape photonic crystal fiber (H-PCF) has been proposed as a gas sensor of which both micro-structured core and cladding are organized by circular air cavities.
Md. Ibadul Islam, Kawsar Ahmed, Shuvo Sen, Sawrab Chowdhury, Bikash Kumar Paul, Md. Shadidul Islam, Mohammad Badrul Alam Miah, Sayed Asaduzzaman   +7 more
doaj   +1 more source

Smart SPR Biosensors: Machine Learning‐Augmented Dual‐Channel PCF Technology

Advanced Photonics Research, Volume 7, Issue 3, March 2026.
The biosensor shows outstanding performance over a wide refractive index range (1.33–1.45), with wavelength sensitivity of 32 000 nm/RIU, amplitude sensitivity of 2338 RIU−1, and spectral resolution of 3.13 × 10−6 RIU. We present a modern dual‐channel surface plasmon resonance (SPR) biosensor that combines advanced photonic crystal fiber (PCF) design ...
Huraiya Md Abu, Sankar Ganesh Ramaraj, Sk. Md. Shahadat Hossain, Kisalaya Chakrabarti, Chang Yi Kong, Hitoshi Tabata, S. M. Abdur Razzak   +6 more
wiley   +1 more source

Atomistic Understanding of 2D Monatomic Phase‐Change Material for Non‐Volatile Optical Applications

Advanced Science, Volume 13, Issue 16, 18 March 2026.
Antimony is a promising monatomic phase‐change material. Scaling down the film thickness is necessary to prolong the amorphous‐state lifetime, but it alters the optical properties. The combined computational and experimental study shows that, as thickness decreases, the extinction coefficient and optical contrast are reduced in the near‐infrared ...
Hanyi Zhang, Xueqi Xing, Jiang‐Jing Wang, Chao Nie, Yuxin Du, Junying Zhang, Xueyang Shen, Wen Zhou, Matthias Wuttig, Riccardo Mazzarello, Wei Zhang   +10 more
wiley   +1 more source

Integrated Ultrasound Device for Precision Bladder Volume Monitoring via Acoustic Focusing and Machine Learning

Advanced Science, Volume 13, Issue 17, 23 March 2026.
We present a conformable wearable ultrasound patch for noninvasive bladder volume monitoring. A flexible PZT array combined with a concave acoustic lens concentrates acoustic energy and improves depth selectivity through the anterior pelvic wall.
Long Long Cao, Feng Wen Wang, Jingwei Xue, Fulei Liu, Ming Liang Jin   +4 more
wiley   +1 more source

Thermoplasmonic Response of Non‐Noble Metal Core–Shell Nanostructures for Solar Energy Harvesting

Carbon Neutralization, Volume 5, Issue 2, March 2026.
The plasmonic properties of Non‐Noble metal@Fe2O3 shell under visible and near‐infrared spectrum were calculated to quantitatively assess the photothermal conversion capability. The plasmonic response intensity and shell thickness relationship were analysed, and the maximum photothermal conversion and plasmonic intensity were summarized.
Jiarong Lv, Xiaofeng Kang, Feng Wang, Shengjie Bai, Shaohua Shen, Ya Liu   +5 more
wiley   +1 more source

Computational Modeling of Geoelectrical Soundings using PML-FDTD

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
The Finite-Difference Time-Domain (FDTD) method was applied in order to analyze the transient responses of geoelectrical soundings that use circular electric dipole (CED) as source over stratified formations.
Luísa F. Ribeiro, Marcela S. Novo
doaj   +1 more source

Reinforcement Learning Enabled Nanophotonic Devices

Laser &Photonics Reviews, Volume 20, Issue 6, 18 March 2026.
A reinforcement learning algorithm is used to design photonic devices. The method creates metagratings and grating couplers that efficiently control both the direction and polarization of light. Further, a reinforcement learning approach is used to design in‐plane integrated photonic devices. This approach paves the way for advanced photonic components
Zi Wang, Junyeob Song, Minsuk Lee, Wenqi Zhu, Amit Agrawal   +4 more
wiley   +1 more source

Mode Integration Disorder Metamaterials: Electromagnetic Wave Manipulation From Arbitrary Coupled Modes to Single Mode

Laser &Photonics Reviews, Volume 20, Issue 6, 18 March 2026.
When a uniform field interacts with a complex medium, it becomes scattered into a nonuniform distribution. A mode‐integration metamaterial employs its intrinsic controlled disorder to coherently reorganize and integrate the scattered field components into a tailored modal output, establishing a new paradigm for programmable modal coupling and versatile
Junming Zhang, Kaiyuan Zhang, Weijia Luo, Yongzheng Wen, Jingbo Sun, Ji Zhou   +5 more
wiley   +1 more source

The cytokinesis regulator RacGAP1 is a Rac1‐specific GAP on membranes

Protein Science, Volume 35, Issue 3, March 2026.
Abstract Rho family small GTPases are essential for cytokinesis completion. RacGAP1, a dimeric multidomain protein with a lipid‐binding C1 domain and a GTPase‐activating protein (GAP) domain, is a major regulator in this process. However, despite many cellular and biochemical studies, whether RhoA or Rac1 is the actual substrate inactivated by RacGAP1 ...
Pavlina Dubois, Yann Ferrandez, Clara Rey, Cyril Pages, Agata Nawrotek, Jacqueline Cherfils   +5 more
wiley   +1 more source