21 papers · ranked by Valyu relevance
Temiz, Murat, Bakken, Vemund
This study proposes an antenna simulation framework powered by graphics processing units (GPUs) based on an open-source electromagnetic (EM) simulation software (gprMax) for machine learning applications of antenna design and optimization. Furthermore, it compares the simulation results with those obtained through…
Liu, Zuyang, Poon, Joyce K. S.
We benchmark Lumerical FDTD and Tidy3D for 3D simulations of passive silicon photonic components on the silicon-on-insulator (SOI) platform. Six devices – including an MMI, directional coupler, waveguide crossing, mode converter, polarization splitter rotator, and ring resonator – are simulated under matched conditions…
Shayan Dodge, Mojtaba Shafiee, Babak Shokri
Since numerical computing with MATLAB offers a wide variety of advantages, such as easier developing and debugging of computational codes rather than lower-level languages, the popularity of this tool is significantly increased in the past decade. However, MATLAB is slower than other languages. Moreover, utilizing…
Yifei He, Måns I. Andersson, Stefano Markidis
The Finite Difference Time Domain (FDTD) method is a widely used numerical technique for solving Maxwell's equations, particularly in computational electromagnetics and photonics. It enables accurate modeling of wave propagation in complex media and structures but comes with significant computational challenges.…
Dafnik Saril Kumar David, Yeongseok Jeong, Yin Chao Wu, Suyun Ham + 2 more
'Hanfei Mei' 'Victor Giurgiutiu'] This paper discusses the challenges in characterizing electromagnetic (EM) waves propagating through inhomogeneous media, such as reinforced cement concrete and hot mix asphalt. Understanding the EM properties of materials, including their dielectric constant, conductivity, and…
Pingchuan Ma, Haoyu Yang, Zhengqi Gao, Duane S. Boning + 1 more
Neural Operator for Ultra-Fast Photonic Device FDTD Simulation Authors: ['Pingchuan Ma' 'Haoyu Yang' 'Zhengqi Gao' 'Duane S. Boning' 'Jiaqi Gu'] Optical simulation plays an important role in photonic hardware design flow. The finite-difference time-domain (FDTD) method is widely adopted to solve timedomain Maxwell…
Xiaoyan Song, Gaomin Zhang, Chang Zhou
Efficient communication is crucial in reducing injuries and fatalities in coal mine accidents, necessitating the study of simulation methods for mine communication. When transceiver antennas are positioned close to the same side of the tunnel, the simulation results from the Ray Tracing (RT) method exhibit significant…
Yongjun Qi, Weibo Liang, Yilan Hu, Liang Zhang + 5 more
'Yuxiang Zhang' 'Tianrun Yan' 'Hongxing Zheng' 'Guo Liu'] The Finite Difference Time-Domain (FDTD) method is a powerful tool for electromagnetic field analysis. In this work, we develop a variation of the algorithm to accurately calculate antenna, microwave circuit, and target scattering problems. To improve…
Jiaxin Sun, Lan Jiang, Mingle Guan, Jiangfeng Liu + 3 more
'Weihua Zhu' 'Andres Sotelo'] Femtosecond lasers have garnered widespread attention owing to their subdiffraction processing capabilities. However, their intricate natures, involving intrapulse feedbacks between transient material excitation and laser propagation, often present significant challenges for near-field…
Justin Crabb, Xavier Cantos-Roman, Gregory Aizin, Josep Miquel Jornet + 1 more
'Josep Miquel Jornet' 'Martijn Wubs'] Graphene-based Field-Effect Transistors (FETs) integrated with microstrip patch antennas offer a promising approach for terahertz signal radiation. In this study, a dual-stage simulation methodology is employed to comprehensively investigate the device’s performance. The initial…
Juan Chen, Chunhui Mou, Sotirios Baskoutas
The hybrid implicit-explicit finite-difference time-domain (HIE-FDTD) method is a weakly conditionally stable finite-difference time-domain (FDTD) method that has attracted much attention in recent years. However due to the dispersion media such as water, soil, plasma, biological tissue, optical materials, etc., the…
Authors not listed
In the field of mid-infrared (m-IR) applications, there is a need to control thermal radiation from metal-insulator-metal (MIM) metasurfaces without any optical components. Here, we introduce the concept of metalens for the MIM metasurfaces. The finite difference time domain (FDTD) simulation was used to design the…
Stephen Thorpe, Sam Blair, Giampaolo Pitruzello, Casper Kunstmann + 3 more
A comprehensive miniaturised biosensing platform needs to detect multiple analytes, which often rely on different transduction mechanisms for their detection and quantification. This necessitates the development of multimodal sensors capable of simultaneous measurements without interference between measurement…
Xi Liu, Wenxi Fang, Ken Perlin
Classical neuronal cable theory relies on quasi-static electric field approximations and neglects magnetic induction, Lorentz force coupling, and transient electromagnetic currents, limiting its ability to fully characterize action potential propagation within geometrically branched axons and dendrites. This work…
Yoshiaki Nishijima, Shunya Kimura, Yu Takeshima, Saulius Jodkazis
Control of light absorption and transmission by metal-insulator-metal (MIM) metasurfaces are important for applications in optical windows. In this study we show realization of photo-thermal energy conversion for the radiative cooling. By controlling absorption and transparency of MIM metasurfaces with thin metal…
Authors not listed
We demonstrate the numerical optimization and design of thermal emission metasurfaces that selectively radiate mid-infrared (mid-IR) circularly-polarized light. The proposed three-dimensional chiral structure, formed by the multilayer stacking of antenna elements, inherently exhibits circular polarization selectivity…
Rachel Cherry, Joseph Joel Muhanga, Hamed Mehrabi, Samuel Conlin + 1 more
Nanostructured dielectric overlayers can be used to increase light absorption in nanometer-thin films used for various optoelectronic applications. Here, the self-assembly of a close-packed monolayer of polystyrene nanospheres is used to template a core-shell polystyrene-TiO2 light-concentrating monolithic structure.…
Stephane Bancelin, Johannes Roos, U. Valentin Nägerl
We introduce Faser, a software package developed in Python as a plugin for the open-source napari platform, designed to simulate the excitation point spread functions (PSFs) of microscopes. Using a full-vectorial computational approach to simulate the electromagnetic fields within the focal region, it makes precise…
Thomas Couppey, Louis Regnacq, Roland Giraud, Olivier Romain + 2 more
Electrical stimulation of peripheral nerves has been used in various pathological contexts for rehabilitation purposes or to alleviate the symptoms of neuropathologies, thus improving the overall quality of life of patients. However, the development of novel therapeutic strategies is still a challenging issue requiring…
T.J. Sego, James P. Sluka, Herbert M. Sauro, James A. Glazier
Tissue Forge is an open-source interactive environment for particle-based physics, chemistry and biology modeling and simulation. Tissue Forge allows users to create, simulate and explore models and virtual experiments based on soft condensed matter physics at multiple scales, from the molecular to the multicellular…
Andreas Ruscheinski, Anja Wolpers, Philipp Henning, Pia Wilsdorf + 1 more
Improving interpretability and reusability has become paramount for modeling and simulation studies. Provenance, which encompasses information about the entities, activities, and agents involved in producing a model, experiment, or data, is pivotal in achieving this goal. However, capturing provenance in simulation…