Results 111 to 120 of about 1,025 (236)
Advanced Science, EarlyView.Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel +3 more
wiley +1 more source
Development of multifrequency MW detection device to scan liquids in security checkpoints
, 2019 PhotonIcs and Electromagnetics Research Symposium - Spring (PIERS-Spring) -- JUN 17-20, 2019 -- Rome, ITALYMamadazizov, Sultonazar/0000-0002-0862-5465Development of both technical devices and effective methods for the detection of various dangerous ...
Rameev, Bulat +3 more
core +1 more source
Electromagnetic Frequency Characteristics of Periodically Graded Wires
, 2019 2019 PhotonIcs and Electromagnetics Research Symposium - Spring, PIERS-Spring 2019 -- 17 June 2019 through 20 June 2019 -- -- 158214In this article, electromagnetic frequency behaviour of periodically graded wire carrying current is investigated.
Filiz, Ayşe Nihan Basmacı
core +1 more source
Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks
Advanced Science, EarlyView.Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley +1 more source
Fluorescent Microresonator Biochemical Sensors: Applications, Limitations and Perspectives
, 2019 Optical microresonators have emerged over the last decades as the state of the art for biochemical sensing applications with several approaches having been demonstrated for single molecule, ion and nanoparticle detection. This has been achieved by taking
T. M. Monro +5 more
core +1 more source
Advanced Science, EarlyView.Nanomaterials offer dual applications in allergy management. For diagnosis, nanomaterials enhance analytical sensitivity and improve detection in specific IgE and functional assays such as the basophil activation test (BAT). For allergen‐specific immunotherapy, nanomaterials enable allergen masking and controlled release, and effectively modulate the ...
Madiha Habib +8 more
wiley +1 more source
Advancements in Photonics for Radio Frequency Electronics Systems
, 2019 Presented on December 10, 2019 from 12:00 p.m.-1:00 p.m. in the Marcus Nanotechnology Building, Rooms 1117-1118, Georgia Tech.Dr. Benjamin B. Yang is a photonics and microelectronics engineer at the Georgia Tech Research Institute (GTRI), where he has ...
Yang, Benjamin
core
Advanced Science, EarlyView.Maximizing Nanoscale Disorder in Block Copolymers for Orientation‐Independent SERS Platform toward Non‐Invasive Diagnostics is a nature‐inspired strategy that engineers controlled randomness within block copolymer lamellae to achieve optical isotropy without compromising nanoscale periodicity.
Jin Man Kim +6 more
wiley +1 more source
Advanced Science, EarlyView.Infrared metasurface‐guided waves (IR‐MGW) scattered by a time interface (TI) induced by rapid, localized free‐carrier generation can be efficiently rectified to generate strong, persistent magnetic fields. We develop a rigorous, theoretical model to study a time‐varying, dispersive medium and uncover the redistribution of the initial energy of the IR ...
Shivaksh Rawat +2 more
wiley +1 more source
Hierarchical Physical‐Cyber Encryption via Metasurface‐Encoded Holographic Keys
Advanced Science, EarlyView.ABSTRACT Physical‐layer encryption based on metasurfaces has emerged as a promising alternative to conventional algorithmic cryptography by embedding security into physical processes. However, most existing metasurface‐based encryption schemes operate within single‐stage or static frameworks, where correct physical illumination directly reveals the ...
Zhen Liu +8 more
wiley +1 more source