Results 131 to 140 of about 59,466 (346)

Polariton Nanophotonics using Phase Change Materials

open access: yes, 2019
Polaritons formed by the coupling of light and material excitations such as plasmons, phonons, or excitons enable light-matter interactions at the nanoscale beyond what is currently possible with conventional optics.
Ambrosio, Antonio   +16 more
core   +1 more source

Nanophotonics: an overview

open access: yesMaterials Today, 2004
Paras N. Prasad's new book expands on his short course for photonics-oriented conferences to give a broad and comprehensive overview of nanophotonics in an informal and accessible style. It could also be used as a text for an introductory graduate-student-level seminar, says Naomi J. Halas .
openaire   +2 more sources

Programming Defects and Cavities into Colloidal Crystals Engineered With DNA

open access: yesAdvanced Materials, EarlyView.
Seed‐mediated crystallization is adapted for colloidal crystals to design cavities and defect architectures through chemically programmed DNA sequences and appropriate seed particle geometry. This synthetic approach combines tenets from both atomic and colloidal crystallization to deliberately control defect formation in superlattices and enables the ...
Rachel R. Chan   +13 more
wiley   +1 more source

Supersymmetry in the time domain and its applications in optics

open access: yesNature Communications, 2020
Supersymmetric quantum mechanics enables the description of phenomena exhibiting a supersymmetry only in the space domain. Here, the authors show an underlying time-domain supersymmetry exists in optics, acoustics, and elasticity, and study its ...
Carlos García-Meca   +2 more
doaj   +1 more source

Temperature Dependence of a Sub-wavelength Compact Graphene Plasmon-Slot Modulator

open access: yes, 2017
We investigate a plasmonic electro-optic modulator with an extinction ratio exceeding 1 dB/um by engineering the optical mode to be in-plane with the graphene layer, and show how lowering the operating temperature enables steeper switching.
Amin, Rubab   +4 more
core   +1 more source

Dual‐Selective Terahertz‐Nanodisc Metasurfaces for Exploring Neurotransmitter Dynamics beyond Spectral Limitations

open access: yesAdvanced Materials, EarlyView.
Observation and detection of neurotransmitter dynamics in aqueous system has been hurdle for analytical fields due to its weak and reversible nature. A terahertz‐nanodisc metasurface which implements comprehensive detection over conformational change and selective sensing is introduced. Utilizing the THz regime photonics and biomimetic environment with
Taeyeon Kim   +6 more
wiley   +1 more source

Low-Power Operation in a Silicon Switch Based on an Asymmetric Mach–Zehnder Interferometer

open access: yesIEEE Photonics Journal, 2015
Mach-Zehnder interferometer (MZI) structures are widely used as optical switches in photonic integrated circuits. However, power consumption is still the key parameter to make such devices practical in the silicon platform, particularly for those based ...
L. Sanchez   +4 more
doaj   +1 more source

Artificial neural networks enabled by nanophotonics

open access: yesLight: Science & Applications, 2019
The growing demands of brain science and artificial intelligence create an urgent need for the development of artificial neural networks (ANNs) that can mimic the structural, functional and biological features of human neural networks.
Qiming Zhang   +4 more
semanticscholar   +1 more source

Fabrication of Organic/Inorganic Nanocomposites: From Traditional Synthesis to Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
It provides an overview of the synthesis of organic/inorganic nanocomposites, spanning from conventional methods to advanced 3D printing techniques. It summarizes key challenges in 3D‐printed nanocomposites and highlights emerging innovations, including 5D printing, AI‐assisted material design, nanoscale additive manufacturing, and sustainable closed ...
Liwen Zhang   +8 more
wiley   +1 more source

High‐Performance Phototransistor Based on a 2D Polybenzimidazole Polymer

open access: yesAdvanced Materials, EarlyView.
A crystalline 2D polybenzimidazole polymer (2DPBI), incorporating a porphyrin‐based π‐system linked via 1,3‐diazole units, is synthesized on the water surface over large areas. The 2DPBI thin‐film exhibits high charge carrier mobility (≈240 cm2 V−1 s−1, measured by terahertz spectroscopy), strong photoresponse, and band‐like transport, enabling ...
Anupam Prasoon   +20 more
wiley   +1 more source

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