Results 31 to 40 of about 50,337 (265)
Sensing and Bio-Sensing Research, 2016 This paper presents an octagonal photonic crystal fiber (O-PCF) for liquid sensing, in which both core and cladding are microstructured. Some propagation characteristics of proposed structure have been investigated by using the full vectorial finite ...
Kawsar Ahmed, Monir Morshed
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Design of 2 μm Low-Loss Hollow-Core Anti-Resonant Fibers
Micromachines, 2023 We systematically studied several of the most traditional hollow-core anti-resonant fiber (HC-ARF) structures, with the aim of achieving low confinement loss, single-mode performance, and high insensitivity to bending in the 2 µm band.
Tianran Sun +10 more
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Confinement Loss and GVD for HF and AHAOF by FEM
International Journal of Optics and Applications, 2012 An analysis of the confinement loss and Group Velocity Dispersion (GVD) due to their importance is performed by means of the fin ite element method for t wo kinds of fibers , an Air-Hole Assisted Optical Fiber (AHA OF) and a Holy Fiber (HF). Both structures are based on a subset of a triangular array of cy lindrical air holes; the cross sections of ...
Akbar Zendehnam +2 more
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Advanced Electromagnetics, 2019 In this paper unique photonic crystal fiber (PCF) structure with nanoholes embedded have been studied. Embedded nanoholes have been filled with different materials of alcoholic groups like butanol, ethanol, methanol and propanol.
K. F. Fiaboe, P. Kumar, J. S. Roy
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Non-Hermiticity-induced wave confinement and guiding in loss-gain-loss three-layer systems [PDF]
Physical Review A, 2016 Following up on previous studies on parity-time-symmetric gain-loss bi-layers, and inspired by formal analogies with plasmonic waveguides, we study non-Hermiticity-induced wave confinement and guiding phenomena that can occur in loss-gain-loss three-layers. By revisiting previous well-established "gain-guiding" concepts, we investigate analytically and
Savoia, Silvio +2 more
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Highly confined low-loss plasmons in graphene–boron nitride heterostructures [PDF]
Nature Materials, 2014 Graphene plasmons were predicted to possess ultra-strong field confinement and very low damping at the same time, enabling new classes of devices for deep subwavelength metamaterials, single-photon nonlinearities, extraordinarily strong light-matter interactions and nano-optoelectronic switches.
Woessner Achim +12 more
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FEBS Letters, EarlyView.Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai +4 more
wiley +1 more source
Impact of Localized Radiative Loss on Inertial Confinement Fusion Implosions
Physical Review Letters, 2020 The impact to fusion energy production due to the radiative loss from a localized mix in inertial confinement implosions using high density carbon capsule targets has been quantified. The radiative loss from the localized mix and local cooling of the reacting plasma conditions was quantified using neutron and x-ray images to reconstruct the hot spot ...
A. Pak +19 more
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The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome
FEBS Letters, EarlyView.This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
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Ultra-Low-Loss Hollow-Core Bragg Antiresonant Fiber With Super Bandwidth Transmission Window
IEEE Photonics Journal, 2022 A novel hollow-core antiresonant fiber with a Bragg structure is proposed. It is numerically simulated using a commercial finite element method, and optical properties of the fiber, such as mode field, confinement loss, and bend loss, are numerically ...
Changming Xia +9 more
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