Results 51 to 60 of about 3,364 (187)

Lasing Actions in GaN Tiny Hexagonal Nanoring Resonators

open access: yesIEEE Photonics Journal, 2010
We achieved optically pumped lasing actions of extremely small optical resonators, which have 1.4-2-μm-diameter GaN hexagonal nanorings with wall widths of 60-140 nm.
Tetsuya Kouno   +3 more
doaj   +1 more source

Wavelet analysis and HHG in nanorings Their applications in logic gates and memory mass devices

open access: yes, 2015
We study the application of one nanoring driven by a laser field in different states of polarization in logic circuits. In particular we show that assigning boolean values to different state of the incident laser field and to the emitted signals, we can ...
Cricchio, Dario, Fiordilino, Emilio
core   +1 more source

Highly excited electronic image states of metallic nanorings

open access: yes, 2017
We study electronic image states around a metallic nanoring and show that the interplay between the attractive polarization force and a repulsive centrifugal force gives rise to Rydberg-like image states trapped several nanometers away from the surface ...
Fey, Christian   +3 more
core   +1 more source

Novel layout of a bi-metallic nanoring for magnetic field pulse generation from light

open access: yesNew Journal of Physics, 2015
Recently Tsiatmas et al proposed using a nanoring made of two different metallic sectors to generate a magnetic pulse from a laser pulse [ 1 ]. Non-uniform heating of the ring creates very large temperature gradients, which drive thermoelectric currents,
Guillaume Vienne   +5 more
doaj   +1 more source

Two-curve-shaped biosensor using photonic crystal nano-ring resonators [PDF]

open access: yesJournal of Nanostructures, 2014
We design a novel nano-ring resonator using two-dimensional photonic crystal (2D-PhC), for bio-sensing applications. The structure of biosensor is created by two-curve-shaped ring resonator which sandwiched by two waveguides.
S. Olyaee, A. Mohebzadeh-Bahabady
doaj   +1 more source

Science‐Towards‐Technology Breakthrough in CO2 Electroreduction: Multiphysics, Multiscale, and Artificial Intelligence Insights

open access: yesAdvanced Materials, EarlyView.
Electrochemical CO2RR is a key technology for converting CO2 into chemicals, but there remains a gap between “laboratory science” and “engineering practice” in current research. This review establishes a multi‐scale research framework, encompassing atomic‐level characterization, microenvironment regulation, external field‐assisted optimization, and AI ...
Ping Hong   +3 more
wiley   +1 more source

Metamaterial properties of Babinet complementary complex structures

open access: yesScientific Reports, 2023
Single and multiple layers of sub-wavelength periodic Babinet complementary patterns composed of rounded nano-object miniarrays were investigated.
Emese Tóth   +3 more
doaj   +1 more source

Twist and Shine: The Impact of Halogen Substitution on Thiele Hydrocarbon's Optical Properties

open access: yesAngewandte Chemie, Volume 138, Issue 6, 2 February 2026.
Halogenation in Thiele hydrocarbons strongly influences structure and excited‐state dynamics. Depending on substitution, “boat” folded forms show large Stokes shifts and strong solvatochromism, while planar “butterfly” derivatives exhibit near‐unity photoluminescence yields.
Angela Punzi   +11 more
wiley   +2 more sources

Equilibrium magnetisation structures in ferromagnetic nanorings

open access: yes, 2006
The ground state of the ring-shape magnetic nanoparticle is studied. Depending on the geometrical and magnetic parameters of the nanoring, there exist different magnetisation configurations (magnetic phases): two phases with homogeneous magnetisation ...
H. Aoki   +18 more
core   +1 more source

Room Temperature Synthesis and Photopatterning of Mesoporous Titanium Dioxide Thin Films

open access: yesAdvanced Materials Technologies, EarlyView.
A nanofabrication strategy combining deep‐UV photolithography with block copolymer self‐assembly enables direct patterning and mineralization of mesoporous TiO2 thin films at room temperature. Photocatalytic titanium oxo‐clusters promote polymer degradation under UV irradiation, enabling multiscale control over porosity, film thickness, and lateral ...
Youssef Ghossoub   +5 more
wiley   +1 more source

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