Results 81 to 90 of about 334,082 (299)

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

open access: yesAdvanced Functional Materials, EarlyView.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang   +4 more
wiley   +1 more source

Extension of the Measurable Wavelength Range for a Near-Infrared Spectrometer Using a Plasmonic Au Grating on a Si Substrate

open access: yesMicromachines, 2019
In this paper, we proposed near-infrared spectroscopy based on a Si photodetector equipped with a gold grating and extended the measurable wavelength range to cover 1200−1600 nm by improving a spectrum derivation procedure.
Yu Suido   +4 more
doaj   +1 more source

Plasmon-Assisted Direction- and Polarization-Sensitive Organic Thin-Film Detector

open access: yesNanomaterials, 2020
Utilizing Bragg surface plasmon polaritons (SPPs) on metal nanostructures for the use in optical devices has been intensively investigated in recent years. Here, we demonstrate the integration of nanostructured metal electrodes into an ITO-free thin film
Michael J. Haslinger   +7 more
doaj   +1 more source

Impact of anisotropy on the interaction of an atom with a one-dimensional nano-grating

open access: yes, 2015
We study the interaction of an atom with a one-dimensional nano-grating within the framework of macroscopic QED, with special emphasis on possible anisotropic contributions.
Buhmann, Stefan Yoshi   +2 more
core   +1 more source

Multisite silicon neural probes with integrated silicon nitride waveguides and gratings for optogenetic applications. [PDF]

open access: yes, 2016
Optimal optogenetic perturbation of brain circuit activity often requires light delivery in a precise spatial pattern that cannot be achieved with conventional optical fibers.
Chen, Yu   +3 more
core   +2 more sources

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

open access: yesAdvanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado   +6 more
wiley   +1 more source

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

open access: yesAdvanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng   +8 more
wiley   +1 more source

Advances in diffractive liquid crystal grating devices using patterned electrodes

open access: yesJournal of Information Display
Optics has advanced through centuries of research into the fundamental properties of light and its interactions with matter. Within this rich history, one optical component stands out: the diffraction grating.
Chan-Hee Han   +4 more
doaj   +1 more source

Terahertz optically tunable dielectric metamaterials without microfabrication

open access: yes, 2012
We theoretically investigate the terahertz dielectric response of a semiconductor slab hosting an infrared photoinduced grating. The periodic structure is due to the charge carries photo-excited by the interference of two tilted infrared plane waves so ...
Brambilla, Massimo   +4 more
core   +1 more source

Experimental observation of plasmons in a graphene monolayer resting on a two-dimensional subwavelength silicon grating [PDF]

open access: yes, 2013
We experimentally demonstrate graphene-plasmon polariton excitation in a continuous graphene monolayer resting on a two-dimensional subwavelength silicon grating.
Hansen, Ole   +5 more
core   +2 more sources

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