Results 61 to 70 of about 2,794,441 (253)
Advanced Functional Materials, EarlyView.A post‐growth method is demonstrated to realize energy‐tunable quantum emitters in GaAs/GaAsN/GaAs core–multishell nanowires on a Si substrate. By combining the N‐induced bandgap reduction with H‐ion irradiation, the GaAsN potential landscape is engineered, enabling isolated, narrow emission lines that function as single‐photon sources with g(2)(0) ∼ 0.
Akant Sagar Sharma +10 more
wiley +1 more source
Development of hollow-core photonic bandgap fibres free of surface modes
, 2009 Conventional optical fibres can only guide light in a high refractive index core by total internal reflection. By using total internal reflections it is not possible to guide light in an air core.
Amezcua-Correa, Rodrigo
core +1 more source
Direct experimental visualization of waves and band structure in 2D photonic crystal slabs
New Journal of Physics, 2014 We demonstrate for the first time the ability to perform time resolved imaging of terahertz (THz) waves propagating within a photonic crystal (PhC) slab.
Benjamin K Ofori-Okai +4 more
doaj +1 more source
Current‐Driven Chirality Detection of Magnetic Textures in Cylindrical Nanowires
Advanced Functional Materials, EarlyView.Current‐assisted anisotropic magnetoresistance measurements in individual Ni/Au cylindrical nanowires enable detection of vortex chirality near Au segments and selective magnetic reversal in defined wire sections at magnetic fields lower than the propagation field. This approach provides a simple, cost‐effective, and non‐invasive method for probing and
Javier Rial +6 more
wiley +1 more source
Photonic band structure in a one-dimensional distributed Bragg reflector pillar
Materials Research Express, 2020 This paper aims to calculate the photonic band structure in a distributed Bragg reflector pillar. The one-dimensional periodic photonic pillar consists of alternating layers of GaAs and air.
Francis Segovia-Chaves +2 more
doaj +1 more source
Highly efficient coupling between a monolithically integrated photonic crystal cavity and a bus waveguide [PDF]
, 2012 We experimentally demonstrate a new optical filter design comprising of a photonic crystal cavity and a low index bus waveguide which are monolithically integrated on a silicon-on-insulator (SOI) platform.
Ferrera, Marcello +13 more
core +1 more source
High‐Efficiency Quantum Defect Generation in Carbon Nanotubes via Oxygen‐Free Photochemistry
Advanced Functional Materials, EarlyView.We show that oxygen plays an important role in quantum defect formation in carbon nanotubes and identify reaction conditions to create a range of different quantum defects for photonics and biosensing. ABSTRACT Single‐walled carbon nanotubes (SWCNTs) offer potential for a wide range of applications from optoelectronic devices to biomedical diagnostics.
Christina Derichsweiler +6 more
wiley +1 more source
T-typed photonic crystal circulator with square lattice Al2O3 rods array and NiZn-ferrite posts
Materials & Design, 2019 This paper proposes and validates a novel T-typed magneto-photonic crystals circulator consisting of Al2O3 ceramic rods array and ferrite posts. Based on the numerical simulations on the band gap of photonic crystals and the function of the circulator ...
Yong Wang +5 more
doaj +1 more source
Band structure and band-gap control in photonic superlattices [PDF]
, 2015 The photonic band structure as well as the density of photon states of a one-dimensional photonic superlattice comprised of alternate layers of air and GaAs are theoretically investigated within the transfer-matrix formalism.
de Dios-Leyva, M +3 more
core +1 more source
Advanced Functional Materials, EarlyView.A self‐healable polymer matrix, crosslinked via dynamic imine bonds, is synergistically coupled with a LiPF6–LiDFOB dual‐salt system to decouple Li+ from the polymer matrix, enabling fast Li+ transport. This strategy offers an effective pathway toward high‐performance, next‐generation gel‐polymer‐based Li‐metal batteries.
Soumallya Banerjee +10 more
wiley +1 more source