Results 131 to 140 of about 583,984 (377)

Laser Interferometry for Broad Area SPR-Grating Couplers in Chemical Applications

Proceedings, 2017
In this work, the fabrication of a SPR (Surface Plasmon Resonance)-grating coupler using Laser Interference Lithography (LIL) has been investigated, giving rise to large area diffraction gratings on a 100 nm-thick gold film. The period of the diffraction
Mauricio Moreno-Sereno, Noemi Pérez, Guillem Domenech-Gil, Laura Parellada-Monreal, Miguel Martínez-Calderón, Mikel Gómez-Aranzadi, Nasser Darwish, Gemma G. Mandayo, Albert Romano-Rodriguez   +8 more
doaj   +1 more source

Electrochemically Driven Tandem In‐Plane Reduction and FeCl3‐ Intercalation of Highly Crystalline Graphene Oxide Thin Films

Advanced Functional Materials, EarlyView.
This study presents a green processing route for high‐performance reduced graphene oxide (rGO) transparent conductive films (TCFs) using highly crystalline Brodie's GO. In‐plane electrochemical reduction forms rGO on insulating substrates without toxic reductants or heat. Subsequent FeCl₃ intercalation enhances conductivity, overcoming the transparency–
Tatsuki Tsugawa, Kazuto Hatakeyama, Junya Kawasaki, Agamoni Pathak, Kazuhito Tsukagoshi, Shintaro Ida, Takaaki Taniguchi   +6 more
wiley   +1 more source

Plasma instability and amplification of electromagnetic waves in low-dimensional electron systems

, 1998
A general electrodynamic theory of a grating coupled two dimensional electron system (2DES) is developed. The 2DES is treated quantum mechanically, the grating is considered as a periodic system of thin metal strips or as an array of quantum wires, and ...
A. B. Mikhailovskii, A. L. Fetter, A. L. Fetter, C. Dahl, C. Wirner, D. C. Tsui, D. C. Tsui, D. Weiss, E. Gornik, F. Stern, I. L. Aleiner, K. Hirakawa, K. Kempa, L. Brey, L. D. Landau, L. D. Landau, L. D. Landau, L. Zheng, M. V. Krasheninnikov, M. V. Krasheninnikov, N. Okisu, R. A. Höpfel, R. Höpfel, S. A. Mikhailov, S. A. Mikhailov, S. A. Mikhailov, S. A. Mikhailov, S. A. Mikhailov, S. J. Allen, Jr., S. J. Allen, Jr., S. J. Smith, T. N. Theis, T. N. Theis, T. N. Theis, V. B. Shikin   +34 more
core   +1 more source

Additive‐Driven Phase Control for Stable and Efficient CsPbI₃ Solar Cells Via Ambient Low‐Temperature Processing

Advanced Functional Materials, EarlyView.
CsPbI₃ perovskite solar cells face stability issues due to high annealing temperatures and moisture. Butylammonium acetate (BAAc) enables stable phase formation at 160°C in ambient laboratory conditions, enhancing efficiency and stability, achieving 18.6% PCE, and maintaining over 81% efficiency after 1,000 hours of maximum power point tracking under 1
Narendra Pai, Aaron Seeber, Wen Liang Tan, Luke J. Sutherland, Chris Easton, Wenqi Yan, Yogesh Gulia, Yesim Gozukara, Jueng‐Eun Kim, Mei Gao, Dechan Angmo   +10 more
wiley   +1 more source

Measurement of atomic diffraction phases induced by material gratings

, 2005
Atom-surface interactions can significantly modify the intensity and phase of atom de Broglie waves diffracted by a silicon nitride grating. This affects the operation of a material grating as a coherent beam splitter.
Alexander D. Cronin, E. Hecht, John D. Perreault, M. Born, P. W. Milonni   +4 more
core   +1 more source

Silicon photonic grating-assisted, contra-directional couplers.

Optics Express, 2013
We demonstrate, in both theory and experiment, 4-port, electrically tunable photonic filters using silicon contra-directional couplers (contra-DCs) with uniform and phase-shifted waveguide Bragg gratings.
W. Shi, Xu Wang, Charlie Lin, Han Yun, Yang Liu, T. Baehr‐Jones, M. Hochberg, N. Jaeger, L. Chrostowski   +8 more
semanticscholar   +1 more source

Integrated Metallo‐Dielectric 3D Hotspots From High Refractive Index Nanodiamond‐Plasmonic Gold Cryosoret Nano‐Assemblies for Photonic Crystal Enhanced Fluorescence

Advanced Functional Materials, EarlyView.
This work presents a novel sensing platform using metallo‐dielectric cryosoret nano‐assemblies and lossless photonic crystals to overcome limitations of conventional plasmonic biosensors. The hybrid system enhances both electric and magnetic field interactions, enabling amplified fluorescence, ultralow detection limits, and prism‐free, objective‐free ...
Seemesh Bhaskar, Weinan Liu, Skye Shepherd, Devinda Wijewardena, Joseph Tibbs, Brian T. Cunningham   +5 more
wiley   +1 more source

Interaction of terahertz electromagnetic field with metallic grating: Near-field zone

, 2012
We have developed theory for the interaction of THz radiation with a sub-wavelength metallic grating. The structure of electric fields of the electromagnetic wave under the metallic grating has been studied in the near-field zone.
Korotyeyev, V. V., Lyaschuk, Yu. M.
core   +1 more source

Silicon mode multi/demultiplexer based on multimode grating-assisted couplers.

Optics Express, 2013
A simple and low-crosstalk 1 × 4 silicon mode (de)multiplexer based on multimode grating-assisted-couplers is proposed. Mode transitions can be flexibly controlled by designing the grating period at the phase-matching condition.
H. Qiu, Hui Yu, T. Hu, G. Jiang, Haifeng Shao, P. Yu, Jianyi Yang, Xiaoqing Jiang   +7 more
semanticscholar   +1 more source

Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth

Advanced Functional Materials, EarlyView.
This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh, Ankita Mohanty, Amit Malakar, Suryasarathi Bose, Suprakas Sinha Ray   +4 more
wiley   +1 more source