Results 121 to 130 of about 1,025 (236)

Intrinsic Phonons as a Dynamic Control Knob for Catalytic Reactivity in 2D Materials

Advanced Science, EarlyView.
Intrinsic phonon excitations are demonstrated to serve as a dynamic control knob for catalytic reactivity in 2D materials. Mode‐selective lattice vibrations reconstruct the electronic structure, lower oxygen evolution reaction barriers, establishing a phonon‐engineering paradigm for dynamically regulating electrocatalysis beyond conventional static ...
Kai Ren, Feifan Wang, Yong‐Wei Zhang, Tianyang Liu, Liangzhi Kou, Yu Jing   +5 more
wiley   +1 more source

Giant Magnetic Purcell Effect Induced by High‐Order Mie Resonances

Advanced Science, EarlyView.
High‐order Mie resonances in dielectric spheres selectively amplify magnetic dipole emission from Eu3+ emitters, producing a giant magnetic Purcell effect. Localized emitters can efficiently access high‐order resonant modes, and the low‐loss TiO2 platform enables direct far‐field observation of the enhanced emission.
Haonan Shi, Ningning Song, Anjun Huang, Zhengwen Yang, Jingbo Sun, Yongzheng Wen, Ji Zhou   +6 more
wiley   +1 more source

Depletion effects in few-mode fibers parametric amplification

, 2019
The effect of depletion in few-mode fiber parametric amplifiers is accounted for by determining the exact solutions of the nonlinear interaction equations. The analytical results are confirmed by full numerical solutions of the governing equations.
A. Trichili, M. Santagiustina, M. Zghal
core  

Symmetry‐Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies

Advanced Science, EarlyView.
A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Jie Yang, Pengyi Feng, Fei Han, Weijin Chen, Zhongwei Jin, Jincheng Ni, Yuanjie Yang, Anxue Zhang, Guy A. E. Vandenbosch, Niels Verellen, Ewald Janssens, Jiafu Wang, Benfeng Bai, Cheng‐Wei Qiu, Xuezhi Zheng   +14 more
wiley   +1 more source

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

Improved PMC Packaging Design by Using Novel Pin Geometries

, 2019
PhotonIcs and Electromagnetics Research Symposium - Spring (PIERS-Spring) -- JUN 17-20, 2019 -- Rome, ITALYInst Elect & Elect Engineers, Assoc Res Advancement Photon & Elect Engn, Electromagnet Acad, Sapienza Univ Rome, Fac Civil & Ind Engn, IEEE ...
Gözlük, T., Teşneli, Nigar Berna, Nişancı, Muhammet Hilmi, Fakülteler, Teknoloji Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü, Teşneli, A. Yahya   +4 more
core   +1 more source

Black body radiation problem with an infinite speed of light perspective and some consequences

2024 Photonics and Electromagnetics Research Symposium, PIERS 2024 -- 21 April 2024 through 25 April 2024 -- Chengdu -- 201582The black body radiation problem is considered in view of the possibility of an infinite speed of light c brought up by the ...
Yener, Namık
core   +1 more source

Transparent Topological Meta‐Diplexer via Tightly Confined Valley Surface States

Advanced Science, EarlyView.
An optically transparent topological metasurface supporting tightly confined valley surface states enables robust and flexible wave routing in an ultrathin platform. A compact transparent meta‐diplexer with spatially and spectrally separated channels is realized, while communication experiments verify high‐fidelity signal transmission, opening new ...
Sijie Li, Ping Li, Zhihao Lan, Yin Li, Hang Wong, Menglin L.N. Chen   +5 more
wiley   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

Development of ios app for photonics/electromagnetics simulations

, 2018
Engineering electromagnetics has proven to be a tough module for many university students. According to a survey conducted, 67% of students think that engineering electromagnetics is the toughest core module that they have taken in their course.
Maran, Nivedha
core