Results 71 to 80 of about 30,411 (268)

Spectral‐Kinetic Synergy in Au‐Network Engineered FeTiO3: A Multi‐Field Coupling Strategy for Lunar In Situ Resource Utilization

Advanced Science, EarlyView.
How can humanity achieve lunar self‐sufficiency? We utilize Au topology networks to modify the abundant lunar ilmenite. This catalyst, under sunlight, can convert waste carbon dioxide into space fuel. This design leverages the moon's natural vacuum for green manufacturing, avoiding the waste of gold and serving as “artificial chloroplasts” to sustain ...
Yahang Wang, Quanxin Wang, Pakkin Leong, Shi Feng, Meng Wang, Runyang Mo, Xianjin Shi, Xiaohui Li, Gangqiang Zhu, Chipui Tang   +9 more
wiley   +1 more source

Design and Optimization of a Compact 2D Photonic Crystal Filter with a Diamond-Shaped Cavity for Optical Sensing

Журнал нано- та електронної фізики
This paper presents the design, modeling, and simulation of an optical filter based on a two-dimensional photonic crystal (PhC), using RSoft software.
F. Kebaili, A. Harhouz, H. Tayoub, A. Hocini   +3 more
doaj   +1 more source

Engineering Slow‐Carrier Interfacial Recombination Enables Tailored Spectral Response

Advanced Science, EarlyView.
This work demonstrates that weak‐drift slow carriers are preferentially captured at generic semiconductor surfaces/interfaces and recombine. This process is manipulated to achieve tailored spectral response. A tens of µm‐wide depletion region is created to observe surface collection rates for photocarriers generated at different positions.
Yibo Zhang, Haozhe Wang, Zeke Liu, Yun Zhong, Zheng‐Hong Lu, Nazir P. Kherani   +5 more
wiley   +1 more source

Design and fabrication of a mid infra-red photonic crystal defect laser in indium antimonide [PDF]

, 2008
This paper presents 2D FDTD modelling and prototype fabrication of a mid-infrared photonic crystal defect laser.
Rarity, John, Cryan, MJ, Heard, Peter J., Cryan, Martin J, J.R. Pugh, Nash, GR, Rarity, JG, M.J. Cryan, Pugh, JR, P.J. Heard, T. Ashley, Nash, Geoffrey R, G.R. Nash, Heard, PJ, Pugh, Jonathan R., Cryan, Martin J., Ashley, T, Rarity, John G., Heard, Peter J, Nash, Geoff R., Ashley, Tim, Pugh, Jon R, J.G. Rarity   +22 more
core   +1 more source

CoSP: Reconfigurable Metamaterial Inverse Design via Contrastive Pretrained Large Language Model

Advanced Science, EarlyView.
In this work, CoSP (contrastive multi‐state pretrain), an intelligent inverse design method for reconfigurable metamaterials based on a contrastive pretrained large language model, is proposed. Numerical experiments demonstrate that CoSP can design reconfigurable metamaterial structures for multi‐state, multi‐band optical responses, showing great ...
Shujie Yang, Yuqi Zhang, Xuzhe Zhao, Yansong Tang, Kaichen Dong   +4 more
wiley   +1 more source

Optical Polarization Response of Hybrid Gratings Made of Metals and Polymers Based on Bruggeman Theory

Cumhuriyet Science Journal
In the current state of the art of grating designs, compositions involving different metals and polymers have not been adequately addressed. Our study aims to fill this gap by investigating the influence of varying material compositions on polarization ...
Talha Erdem, Emirhan Taze
doaj   +1 more source

Design of an Improved Optical Filter Based on Dual-Curved PCRR for WDM Systems [PDF]

Journal of Optoelectronical Nanostructures, 2017
In this paper, an optical filter based on a two dimensional photonic crystalring resonator (PCRR) with triangular lattice is designed and presented. For thispurpose, the effects of positioning, arrangement and the number of the inner rods of thedual ...
Vahid Fallahi, Mahmood Seifouri
doaj  

Metasurface‐Enabled Helical Wavefront Fingerprint Metrology for Quantitative Retrieval of Liquid Optical Constants

Advanced Science, EarlyView.
A metasurface‐enabled helical wavefront fingerprint (MHWF) paradigm is proposed for quantitative and specific retrieval of a liquid medium's refractive index and extinction coefficient. The liquid's complex dielectric response governs the wavefront evolution of the metasurface‐generated focused vortex beam, forming a distinctive three‐dimensional ...
Yuting Zhou, Hongliang Li, Simeng Li, Feiyu Jiao, Yansong Du, Jin Tae Kim, Sang‐Shin Lee, Duk‐Yong Choi, Fei Ding, Xuechao Yu, Xun Guan   +10 more
wiley   +1 more source

Simulation of interaction of antennas in the near zone

Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка
Relevance. Obtaining the minimization or maximization of the interaction between the radiating and receiving antennas (or the receiving antenna with fields reflected from some obstacle) due to the orientation and location of the antennas at a certain ...
М. Legenkiy, V. Khrychov
doaj   +1 more source

A FDTD model for the post-reception synthetic focusing surface penetrating radar with mine detecting applications [PDF]

, 1999
Surface penetrating radar (SPR) is extensively used in military, civil, geophysical and archaeological applications. There has been an increasing emphasis on the use of SPR in the identification of buried unexploded ordnance, such as anti-tank mines ...
Nilavalan, R, Benjamin, R, Hilton, GS
core   +1 more source