Results 121 to 130 of about 66,231 (314)

Low-loss Ti:sapphire waveguides fabricated by pulsed laser deposition

, 2012
We report the fabrication and characterisation of Ti:sapphire films epitaxially grown on c-cut sapphire substrates by pulsed laser deposition (PLD). Deposition conditions have been studied extensively and optimised in order to produce high-performance ...
Shepherd, D.P., Choudhary, Amol, Sposito, Alberto, Eason, R.W.   +3 more
core  

Laser‐Induced Periodic Phase‐Transition of 2D‐MoTe2 Nanograting Template for Frequency‐Shift Digital‐SERS Immunoassay of Autoimmune Disease

Advanced Science, EarlyView.
A protocol of fs‐laser‐induced periodic phase‐transition of 2D‐MoTe2 template, inducing AuNPs@1T’‐MoTe2 nanograting, is developed. The labeled AuNPs@1T’‐MoTe2 substrate conjugated with specialized immunoglobulin G demonstrates an unexpectedly high discrimination accuracy close to unity for serological diagnosis of rheumatoid arthritis by frequency ...
Yao Yao, Lulu Cao, Xiaolin Sun, Qiang Wang, Zhiyang Xu, Tianrui Zhai, Yan Zhao, Yijian Jiang, Zhanguo Li, Yinzhou Yan   +9 more
wiley   +1 more source

Helical Electron Beam Micro‐Bunching by High‐Order Modes in a Micro‐Plasma Waveguide

Advanced Science, EarlyView.
ABSTRACT Electron acceleration by a high‐power Laguerre‐Gaussian pulse in a micro‐plasma waveguide is investigated. When the incident laser travels in the waveguide, electrons on the wall are extracted into the vacuum core and accelerated by the longitudinal field of the waveguide mode.
Xingju Guo, Longqing Yi
wiley   +1 more source

Integrated corner mirrors physically micromachined in silica-on-silica

, 2011
In integrated photonics, compact redirection of light can be achieved by corner (turning) mirrors, providing a route to higher density optical components.
Smith, P.G.R., Carpenter, Lewis, James C. Gates, Christopher Holmes, Rogers, Helen, Peter G.R. Smith, Holmes, C., Gates, J.C., Lewis G. Carpenter, Helen L. Rogers   +9 more
core   +1 more source

Tunable High‐Performance Metamaterial Filters Based on Novel SRR Architectures

Advanced Science, EarlyView.
Based on two novel SRR configurations and two independent SRR integration approaches, four tunable bandpass metamaterial filters were fabricated with an ultra‐thin ceramic substrate. Among them, SM‐2 achieves over 97% electromagnetic wave transmittance, with a minimal 1.15% deviation in its resonant frequency prediction, making them promising ...
Lingxi Qu, Liya Zheng, Ruopeng Liu, Chunlin Ji, Bin Li   +4 more
wiley   +1 more source

Engineering topological interface states in metal-wire waveguides for broadband terahertz signal processing

Nanophotonics
Innovative terahertz waveguides are in high demand to serve as a versatile platform for transporting and manipulating terahertz signals for the full deployment of future six-generation (6G) communication systems.
Ghazialsharif Mohammad, Dong Junliang, Bongiovanni Domenico, Vorobiov Anton, Wang Ziteng, Chen Zhigang, Kip Detlef, Morandotti Roberto   +7 more
doaj   +1 more source

Drop‐Shaped Optical Microfiber Enabled Biomechanical Sensor

Advanced Science, EarlyView.
A novel microforce sensor based on a drop‐shaped optical microfiber is presented herein, designed to characterize the biomechanical properties of single cells and microscale living organisms, achieving a force resolution of 24 nN. Leveraging its high sensitivity, facile miniaturization, excellent flexibility, and robust mechanical stability, this ...
Yan Xu, Xitao Tu, Haochen Jiang, Jun Mo, Xinyue Zhang, Xiaomin Yue, Limin Tong, Lei Zhang   +7 more
wiley   +1 more source

Silicon photonic modulators for the mid-infrared

, 2013
Mid-infrared group-IV material photonics is an emerging field, which aims to migrate techniques used for near-infrared silicon photonics to longer wavelengths, and to address applications in areas such as environmental and bio-chemical sensing, homeland ...
Nedeljković, Miloš
core  

Advances in modified gallium lanthanum sulphide (Ga:La:S) glass for optical fibre devices

, 2001
The advantages of gallium lanthanum sulphide (GLS) based glass over other competing glasses for active and infrared applications are evident through its low-phonon energy, high rare-earth solubility, high transition temperature and non-toxicity.
Harwood, D.W.J., Fu, A., Petrovich, M., Arshad K. Mairaj, A. Fu, L.N. Ng, N. G. Broderick, Mairaj, A., Daniel W. Hewak, Petrovich, Marco N., Monro, T.M., Harwood, D., Hewak, D., Mairaj, Arshad K., Tanya M. Monro, D. W. J. Harwood, West, Y., Monro, T., Broderick, N., Yvonne D. West, Marco N. Petrovich, Broderick, N.G., Ng, L., West, Yvonne D., Ng, L.N.   +24 more
core   +1 more source

Unidirectional Evaporation‐Induced Tunable and Continuous Gradient Composite Structure for Absorption‐Dominant Electromagnetic Interference Shielding

Advanced Science, EarlyView.
A continuous conductivity gradient is formed in a porous MXene/melamine foam via directional evaporation, thereby improving impedance matching and enhancing electromagnetic attenuation. The resulting monolithic composite delivers absorption‐dominant EMI shielding with ultralow reflection, offering a simple route toward lightweight EMI shielding ...
Dawei Zhang, Yan Zhang, Baosong Li, Abdallah Kamal, Haider Butt, Kin Liao, Lianxi Zheng   +6 more
wiley   +1 more source