Results 81 to 90 of about 50,337 (265)

Design and Optimization of Polarization-Maintaining Hollow-Core Anti-Resonant Fibers Based on Pareto Multi-Objective Algorithms

Photonics
This work proposes a novel polarization-maintaining hollow-core anti-resonant fiber structure characterized by high birefringence and low transmission loss.
Yingwei Qin, Xutao Lu, Yunxiao Ren, Zhiling Li   +3 more
doaj   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

Advanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge, P. Sanju S. Panawala, Joseph F. S. Fernando, Zhenhuan Chen, Chao Zhang, Dong‐Chen Qi, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +8 more
wiley   +1 more source

Breaking the Loss Limitation of On-chip High-confinement Resonators

, 2016
On-chip optical resonators have the promise of revolutionizing numerous fields including metrology and sensing; however, their optical losses have always lagged behind their larger discrete resonator counterparts based on crystalline materials and flowable glass.
Ji, Xingchen, Barbosa, Felippe A. S., Roberts, Samantha P., Dutt, Avik, Cardenas, Jaime, Okawachi, Yoshitomo, Bryant, Alex, Gaeta, Alexander L., Lipson, Michal   +8 more
openaire   +2 more sources

Highly birefringent do-octagonal photonic crystal fibers with ultra flattened zero dispersion for supercontinuum generation

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Photonic crystal fiber (PCF) structures with do-octagonal geometry have been studied. These do-octagonal PCF structure have smaller circular holes arranged in rhombic fashion at its centre.
Pranaw Kumar, Kokou Firmin Fiaboe, Jibendu Sekhar Roy   +2 more
doaj   +1 more source

Alcohol sensing over O+E+S+C+L+U transmission band based on porous cored octagonal photonic crystal fiber

Photonic Sensors, 2017
A micro structure porous cored octagonal photonic crystal fiber (P-OPCF) has been proposed to sense aqueous analysts (alcohol series) over a wavelength range of 0.80 μm to 2.0 μm.
Bikash Kumar Paul, Md. Shadidul Islam, Kawsar Ahmed, Sayed Asaduzzaman   +3 more
doaj   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

Advanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon, Jordan Noronha, Justin Dirrenberger, Andrey Molotnikov   +3 more
wiley   +1 more source

Comparative study of fundamental properties of honey comb photonic crystal fiber at 1.55µm wavelength

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
Fundamental properties such as mode field distribution, real effective refractive index, imaginary effective refractive index, confinement loss of two new kinds of honeycomb photonic crystal fibers are successfully studied by using Full-Vectorial Finite ...
S.S. Mishra, Vinod Kumar Singh
doaj   +1 more source

Proposal for a Quad-Elliptical Photonic Crystal Fiber for Terahertz Wave Guidance and Sensing Chemical Warfare Liquids

Photonics, 2019
A porous-core photonic crystal fiber based on a cyclic olefin homopolymer (Zeonex) is proposed; it shows high birefringence, high core power fraction, low losses, and near-zero flat dispersion. The fiber’s core was designed with quad-elliptical (QE)
Izaddeen Yakasai, Pg Emeroylariffion Abas, Shubi F Kaijage, Wahyu Caesarendra, Feroza Begum   +4 more
doaj   +1 more source

Microstructure Reconstruction in Battery Electrodes Using Machine Learning Based on Low‐Voltage Focused Ion Beam–Scanning Electron Microscopy Tomography Images

Advanced Engineering Materials, EarlyView.
Low‐voltage FIB‐SEM tomography combined with a image preprocessing pipeline improves phase contrast and enables reliable machine‐learning segmentation of conductive networks in lithium‐ion battery electrodes. Structural descriptors are extracted from segmented images, done semimanually and automated, and compared.
Lisa Beran, Vincent Nebel, Dominik Perius, Kshitij Kumar, Yannis Heim, Laura Bies, Tobias Kraus   +6 more
wiley   +1 more source

Benzene Shape Photonic Crystal Fiber Based Plasma Sensor: Design and Analysis

Photonic Sensors, 2018
A novel benzene core photonic crystal fiber (BC-PCF) is proposed for plasma sensing applications. The proposed BC-PCF parameters have been tuned to gain high sensitivity, high numerical aperture (NA), and low confinement loss, and modality over the ...
Md. Toriqul Islam, Md. Golam Moctader, Kawsar Ahmed, Sawrab Chowdhury   +3 more
doaj   +1 more source