Results 101 to 110 of about 66,302 (314)

Calculation of losses in 2-D photonic crystal membrane waveguides using the 3-D FDTD method [PDF]

, 2004
The three-dimensional finite-difference time-domain method is used to obtain loss per unit length in a two-dimensional photonic crystal membrane waveguide by simulating three different length guides. Results are shown for propagation both above and below
Cryan, MJ, Rorison, JM, Wong, DCL, Railton, CJ, Craddock, IJ, Yu, S   +5 more
core   +1 more source

Unidirectional reflectionless light propagation at exceptional points

Nanophotonics, 2017
In this paper, we provide a comprehensive review of unidirectional reflectionless light propagation in photonic devices at exceptional points (EPs).
Huang Yin, Shen Yuecheng, Min Changjun, Fan Shanhui, Veronis Georgios   +4 more
doaj   +1 more source

Evanescent-Wave Gas Sensing Using an Integrated Thermal Light Source

Proceedings, 2017
The last years showed an increased request for miniaturised, CMOS-compatible gas detectors. In contrast to sensors utilizing metal-oxide chemical interfaces, optical strategies are potentially faster and more robust.
Cristina Consani, Christian Ranacher, Andreas Tortschanoff, Thomas Grille, Peter Irsigler, Bernhard Jakoby   +5 more
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Silicon photonic modulators for the mid-infrared [PDF]

, 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 [PDF]

, 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

Hybrid Continuum Robot Designs and Architectures for Healthcare Applications

Advanced Robotics Research, EarlyView.
Hybrid continuum robots represent an emerging class of flexible manipulators that blend materials, structures, and actuation concepts from the established fields of soft and continuum robotics. This review introduces an accessible framework to distinguish key hybridization approaches, surveys current designs aimed at complex clinical applications, and ...
Burak Ozdemir, Muhammad A. Khalid, Manish Chauhan, Pietro Valdastri, James H. Chandler   +4 more
wiley   +1 more source

Performance Analysis of a Broadband Second-Order Mode Converter Based on Multimode Interference Coupler and Phase Shifter

IEEE Photonics Journal, 2015
A novel mode converter with broad bandwidth, high mode conversion efficiency, and large fabrication tolerance is proposed and fabricated on a silicon-on-insulator (SOI) platform.
Jifang Qiu, Daolin Zhang, Ye Tian, Jian Wu, Yan Li, Yue Wang   +5 more
doaj   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

A multi-layer platform for low-loss nonlinear silicon photonics

APL Photonics, 2019
We demonstrate four-wave mixing (FWM) interactions in a-Si:H waveguides in a multilayer integrated silicon photonic chip. The a-Si:H waveguides are accessed through interlayer couplers from waveguides composed of SiNx.
Neil MacFarlane, Michael R. Kossey, Jasper R. Stroud, Mark A. Foster, Amy C. Foster   +4 more
doaj   +1 more source