Results 171 to 180 of about 170,651 (280)

A New Method for Measuring Permittivity Using Terminated Rectangular Waveguide

, 1988
Hirokatsu Yashiro, Jiro OHNO
openalex   +2 more sources

Optical Self‐Tuning of Ferroelectric Metasurfaces Infiltrated with Nematic Liquid Crystals via Photovoltaic Effect

Advanced Optical Materials, EarlyView.
A novel scheme is introduced to achieve optical self‐tuning in ferroelectric lithium niobate (LN) metasurfaces equipped with a thin film of liquid crystals (LCs). The resonant optical field distributions inside the meta‐atoms can induce a photovoltaic (PV) field, which reorients the surrounding LCs.
Atefeh Habibpourmoghadam, Boris N. Chichkov, Antonio Calà Lesina   +2 more
wiley   +1 more source

High Precision Measurements of the Permittivity of Water in the Microwave Range

, 1990
Heinz‐Jürgen Steinhoff, A. Redhardt, Klaus Lieutenant, W. Chrost, Guenter Hess, J. Schlitter, Helmut Neumann   +6 more
openalex   +2 more sources

Cation‐Engineered Post‐Treatment for Blue Perovskite Light‐Emitting Diodes

Advanced Optical Materials, EarlyView.
This work presents a cation‐engineered post‐treatment strategy for high‐performance mixed‐halide blue PeLEDs. By investigating the role of 4‐fluorophenylethylammonium (FPEA+) versus conventional phenylethylammonium (PEA+) organic cations in post‐treatment agents, it demonstrates that FPEA+ enables superior preservation of the 3D perovskite structure ...
Zheng Zhang, Aqiang Liu, Hui Yu, Guo‐Hua Zhong, Haibin Su, Nana Wang, Jianpu Wang, Ni Zhao   +7 more
wiley   +1 more source

Permittering og sykefravær

, 2004
Målet med denne rapporten var å finne ut om det er noen samvariasjon mellom sykefravær og permittering. Bakgrunnen er at lønnstakere har et ikke ubetydelig inntektsbortfall ved en permittering, noe som gir et økonomisk incitament til å bli sykemeldt i stedet.
Næsheim, Helge Nome, Pedersen, Trond
openaire   +1 more source

Extreme Terahertz Nonlinearity of AlGaN/GaN‐Based Grating‐Gate Plasmonic Crystals

Advanced Optical Materials, EarlyView.
Plasmonic crystals based on grating‐gated 2D electron gas in AlGaN/GaN heterostructures provide a platform for strong light‐matter interaction. Pump‐probe experiments revealed strong terahertz nonlinearity leading to 45% increase in transmission at a fluence below 350 nJ cm−2.
Pavlo Sai, Vadym V. Korotyeyev, Dmytro B. But, Maksym Dub, Dmitriy Yavorskiy, Jerzy Łusakowski, Mateusz Słowikowski, Serhii Kukhtaruk, Yurii Liashchuk, Jeong Woo Han, Christoph Böttger, Alexej Pashkin, Stephan Winnerl, Wojciech Knap, Martin Mittendorff   +14 more
wiley   +1 more source

Understanding the Role of Fabry‐Perot Resonances in Maximizing Absorption for Ultrathin Sn Halide Perovskite Optoelectronic Devices

Advanced Optical Materials, EarlyView.
A design principle is presented that maximizes absorption in ultrathin (tens of nanometers) Sn halide perovskite optoelectronic devices by aligning their intrinsic absorption wavelengths with Fabry–Pérot (FP) resonances. The ultrathin FASnI3 devices exhibit increases open‐circuit voltage, reduces dark current, and high photocurrent, yielding high ...
Donggyu Lim, Jia Choi, Seongcheol Ju, Bum Ho Jeong, Hakjun Kim, Kyu‐Tae Lee, Hui Joon Park   +6 more
wiley   +1 more source

A smooth permittivity function for Poisson–Boltzmann solvation methods [PDF]

, 2001
J. Andrew Grant, Barry T. Pickup, Anthony Nicholls   +2 more
openalex   +1 more source

Terahertz Spoof Surface Plasmon Polariton Structure for High‐Precision Gas Sensor Technology

Advanced Photonics Research, EarlyView.
This study presents a high‐sensitivity THz sensor based on spoof surface plasmon polaritons, optimized for gas sensing. The multilayer structure enables placement of the sample material in the densest region of the plasmonic surface waves, enhancing interaction with THz waves and significantly improving sensitivity to small refractive index variations ...
Vahid Najafy, Bijan Abbasi‐Arand, Maryam Hesari‐Shermeh   +2 more
wiley   +1 more source

Dielectric Permittivity and AC Conductivity Investigation for the New Model Lipid Bilayer Material: (CH₂)₁₀(NH₃)₂CdCl₄ [PDF]

, 2001
M.F. Mostafa, Ahmed A.A. Youssef
openalex   +1 more source