Results 61 to 70 of about 190,146 (342)

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Dispersion in a Gas Filled Hollow Core Photonic Crystal Fiber

open access: yesمجلة بغداد للعلوم, 2014
Hollow core photonic bandgap fibers provide a new geometry for the realization and enhancement of many nonlinear optical effects. Such fibers offer novel guidance and dispersion properties that provide an advantage over conventional fibers for various ...
Baghdad Science Journal
doaj   +1 more source

Graphene-based one-dimensional photonic crystal

open access: yes, 2011
A novel type of one-dimensional (1D) photonic crystal formed by the array of periodically located stacks of alternating graphene and dielectric stripes embedded into a background dielectric medium is proposed.
Berman O L   +11 more
core   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton   +11 more
wiley   +1 more source

Topology optimization of a 120° bending high temperature superconducting photonic crystal waveguide

open access: yesResults in Physics
The two-dimensional high-temperature superconducting photonic crystal structure has been widely studied as a novel type of photonic crystal structure.
Fei Wang   +7 more
doaj   +1 more source

Entangling Atoms in Photonic Crystals [PDF]

open access: yes, 1999
We propose a method for entangling a system of two-level atoms in photonic crystals. The atoms are assumed to move in void regions of a photonic crystal. The interaction between the atoms is mediated either via a defect mode or via resonant dipole-dipole
Buzek, Vladimir, Konopka, Martin
core   +2 more sources

Photoactivation of NV Centers in Diamond via Continuous Wave Laser Illumination of Shallow As‐Implanted Nitrogen

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates an alternative method of creating charge‐stable negatively charged nitrogen vacancy (NV−) centers close to the diamond surface without high‐temperature annealing. By illuminating nitrogen‐implanted regions with a continuous‐wave 405 nm laser, NV− centers are induced, exhibiting electron spin coherence properties suitable for ...
Jens Fuhrmann   +4 more
wiley   +1 more source

Hybrid External Cavity Laser with an Amorphous Silicon-Based Photonic Crystal Cavity Mirror

open access: yesApplied Sciences, 2019
The authors present results on the performance of a hybrid external cavity photonic crystal laser-comprising semiconductor optical amplifier, and a 2D photonic crystal cavity fabricated in low-temperature amorphous silicon.
Simone Iadanza   +4 more
doaj   +1 more source

Air-Mode Photonic Crystal Micro-Ring Resonator With Enhanced Quality Factor for Refractive Index Sensing

open access: yesIEEE Photonics Journal, 2020
Intense light-matter interaction is critical for enabling high-sensitivity refractive index sensors, high-efficiency light sources, and high-performance nonlinear devices.
Yameng Xu, Shubo Hu, Mei Kong
doaj   +1 more source

Fractal Photonic Crystal Waveguides

open access: yes, 2004
We propose a new class of one-dimensional (1D) photonic waveguides: the fractal photonic crystal waveguides (FPCWs). These structures are photonic crystal waveguides (PCWs) etched with fratal distribution of grooves such as Cantor bars.
Bertolotti   +22 more
core   +1 more source

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