Results 161 to 170 of about 11,957 (302)

Terahertz Vortex Wave Generation and Reversible Beam Switching based on Coding Metasurface

Guangtongxin yanjiu
【Objective】Terahertz vortex waves have a wide range of applications in the fields of broadband communications, military radar, biomedicine and detection, etc.
CHEN Xi, YANG Zhixiong, WANG Jingli, CHEN Heming   +3 more
doaj  

Andreev terahertz radiation generators

The electrical, magnetic and optical properties of edge channels consisting of spin circuits that contain single carriers in nanostructures of silicon, silicon carbide and cadmium fluoride are investigated. It is demonstrated that due to the presence of chains of negative-U dipole centers at the boundaries of the spin circuits, the latter are Andreev ...
Bagraev, N. T., Klyachkin, L. E., Kukushkin, S. A., Malyarenko, A. M., Osipov, A. V., Romanov, V. V., Rul, N. I., Taranets, K. B.   +7 more
openaire   +2 more sources

Machine Learning‐Assisted Design and Performance Prediction of a Compact Dual‐Band Polarization‐Insensitive THz Metamaterial Absorber for Skin‐Cancer‐Related Refractive‐Index Sensing

Advanced Electronic Materials, EarlyView.
A compact QASRR‐based THz metamaterial absorber enables polarization‐insensitive dual‐band absorption and skin‐cancer‐related refractive‐index sensing through measurable resonance shifts. Field, surface‐current, and circuit analyses clarify the dual‐resonance mechanism, while StackNet‐assisted prediction accurately estimates the simulated absorption ...
Md. Murad Kabir Nipun, S. M. Rifatur Rana, Md. Golam Morshed, Imrose Jahan, F. A. Sabbir Ahamed, Md. Jahedul Islam   +5 more
wiley   +1 more source

Alcohol‐Adduct Mediated Precursor Stabilization Strategies for Conformal SnO2 Layers in Highly Efficient and Stable Perovskite Solar Modules

Advanced Energy Materials, EarlyView.
An alcohol‐adduct‐mediated strategy is employed to stabilize tin isopropoxide for the formation of a homogeneous double electron transport layer (ETL) incorporating SnO2 nanoparticles (NPs). This double‐ETL exhibits improved optical and charge‐transport properties due to reduced defect density and better energy level alignment, resulting in high ...
You‐Hyun Seo, Eun Young Park, Chan Su Moon, Dong Gyu Lee, Junho Park, Fabian Rotermund, Gill Sang Han, Tae Kyung Lee, Nam Joong Jeon, Bong Joo Kang, Young Yun Kim   +10 more
wiley   +1 more source

Nonlinear Metasurface Fresnel Zone Plates for Terahertz Generation and Manipulation. [PDF]

Nano Lett, 2019
Minerbi E, Keren-Zur S, Ellenbogen T.
europepmc   +1 more source

Holographic Mapping of Orbital Angular Momentum using a Terahertz Diffractive Optical Neural Network

Advanced Intelligent Discovery, EarlyView.
A compact six‐layer diffractive optical neural network enables direct recognition and spatial mapping of terahertz (THz) orbital angular momentum (OAM) beams. Fabricated by 3D printing, the system distinguishes nine OAM modes and their superpositions with high fidelity, good efficiency, and low crosstalk, offering a scalable solution for THz ...
Wei Jia, Miguel Gomez, Steve Blair, Berardi Sensale‐Rodriguez   +3 more
wiley   +1 more source

A Critical Assessment of Bonding Descriptors for Predicting Materials Properties

Advanced Intelligent Discovery, EarlyView.
The impact of new bonding descriptors in machine learning models for predicting material properties is assessed. Improvements are validated using significance tests, and new, intuitive descriptors for screening lattice thermal conductivity and projected force constants are introduced.
Aakash Ashok Naik, Nidal Dhamrait, Katharina Ueltzen, Christina Ertural, Philipp Benner, Gian‐Marco Rignanese, Janine George   +6 more
wiley   +1 more source

Spectral phase control of interfering chirped pulses for high-energy narrowband terahertz generation. [PDF]

Nat Commun, 2019
Jolly SW, Matlis NH, Ahr F, Leroux V, Eichner T, Calendron AL, Ishizuki H, Taira T, Kärtner FX, Maier AR.   +9 more
europepmc   +1 more source

Terahertz Signal Generation in 1-D Photonic Crystals Terahertz Signal Generation in 1-D Photonic Crystals

Acta Universitaria, 2012
Theoretical and numerical results are presented to assure that a tunable, narrow-band, coherent THz radiation source can be based on parametric down-conversion in aphotonic crystal.
Mónica Trejo, Ángel González, O. Ibarra-Manzano, J. Estudillo-Ayala, R. Rojas-Laguna, J. González-Barboza, A. Andrade-Lucio, E. Alvarado-Méndez, R. Castro-Sánchez, R. Guzmán-Cabrera, L. A. Aguilera-Cortés, J. W. Haus, M. Torres-Cisneros   +12 more
doaj  

Enhanced Modulation of Terahertz Generation in Optically Pumped Silicon-Based CoFeB/Ir Heterostructures. [PDF]

Nanomaterials (Basel)
Peng R, Jin Z, Jiang Y, Zhang H, He W, Peng Y.   +5 more
europepmc   +1 more source