Results 31 to 40 of about 938,702 (324)

Expanded-beam backside coupling interface for alignment-tolerant packaging of silicon photonics [PDF]

, 2020
We demonstrate an alignment-tolerant backside coupling interface in the O-band for silicon photonics by generating an optimized through-substrate (downward) directionality beam from a TE-mode grating coupler and hybrid integrating the chip with backside ...
Mangal, Nivesh, Missinne, Jeroen, Snyder, Bradley, Van Campenhout, Joris, Van Steenberge, Geert   +4 more
core   +2 more sources

Practical aspects of measurement-device-independent quantum key distribution [PDF]

, 2013
A novel protocol - measurement-device-independent quantum key distribution (MDI-QKD) - removes all attacks from the detection system, the most vulnerable part in QKD implementations. In this paper, we present an analysis for practical aspects of MDI-QKD.
Curty, Marcos, Lo, Hoi-Kwong, Qi, Bing, Xu, Feihu   +3 more
core   +2 more sources

A novel concentric circular ring structure applied in AUV’s inductive power transfer system for resisting the disturbance of ocean current

AIP Advances, 2018
Inductive power transfer (IPT) realizes no physical connection and make it possible to be a substitute for conductive charging in autonomous underwater vehicle (AUV) power feeding applications.
Haibing Wen, Kehan Zhang, Zhengchao Yan, Baowei Song   +3 more
doaj   +1 more source

Fault-tolerant and finite-error localization for point emitters within the diffraction limit

, 2016
We implement an estimator for determining the separation between two incoherent point sources. This estimator relies on image inversion interferometry and when used with the appropriate data analytics, it yields an estimate of the separation with finite ...
Bettens, Nair, Pearlman, Rayleigh, Sparrow   +4 more
core   +1 more source

Design and Optimization of a Modular Wireless Charging Scheme for Electric Buses With High Misalignment Tolerance

Frontiers in Energy Research, 2022
Modular design helps to improve the reliability and power density of power electronic systems, so cascading of power electronics modules is an effective method to improve the overall stability of the system. The application of the wireless power transfer
Rui He, Rui He, Jian Gao, Aixi Yang, Jing Zhou, Jing Zhou   +5 more
doaj   +1 more source

Adaptive Diversity Algorithm Based on Block STBC for Massive MIMO Link Misalignment in UWOC Systems

Journal of Marine Science and Engineering, 2023
In the past few years, underwater wireless optical communication (UWOC) has become a promising wireless communication technology in the underwater environment.
Yanlong Li, Kongliang Zhu, Yutong Jiang, Syed Agha Hassnain Mohsan, Xiao Chen, Shuaixing Li   +5 more
doaj   +1 more source

The Optical Design of CHARIS: An Exoplanet IFS for the Subaru Telescope [PDF]

, 2013
High-contrast imaging techniques now make possible both imaging and spectroscopy of planets around nearby stars. We present the optical design for the Coronagraphic High Angular Resolution Imaging Spectrograph (CHARIS), a lenslet-based, cryogenic ...
Brandt, Timothy, Carr, Michael A., Driscoll, Dave, Fagan, Rad, Foster, Allen, Galvin, Michael, Groff, Tyler D., Guyon, Olivier, Hayashi, Masahiko, Janson, Markus, Jovanovic, Nemanja, Kasdin, N. Jeremy, Knapp, Gillian, LeClerc, Dave, Martinache, Frantz, McElwain, Michael W., Peters-Limbach, Mary Anne, Takato, Naruhisa   +17 more
core   +3 more sources

Microring resonators with enhanced tolerance to fabrication misalignments

Journal of Optics A: Pure and Applied Optics, 2009
Analysis of a design scheme that relaxes alignment issues is reported. This entails the use of vertically coupled microring resonators (MR). It is shown that an almost flat response of the coupling coefficient to offset values up to 1 µm is feasible by judicious choice of the bus and ring waveguide geometry.
Alexandropoulos, D., Simos, H., Kusko, M., Cristea, D., Syvridis, D., Vainos, N.A.   +5 more
openaire   +2 more sources

Lessons Learned: Quality Analysis of Optical Coherence Tomography in Neuromyelitis Optica

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Optical coherence tomography (OCT)‐derived retina measurements are markers for neuroaxonal visual pathway status. High‐quality OCT scans are essential for reliable measurements, but their acquisition is particularly challenging in eyes with severe visual impairment, as often observed in neuromyelitis optica spectrum disorders ...
Hadi Salih, Sara Samadzadeh, Charlotte Bereuter, Seyedamirhosein Motamedi, Claudia Chien, Pablo Villoslada, Hadas Stiebel‐Kalish, Nasrin Asgari, Yang Mao‐Draayer, Marius Ringelstein, Joachim Havla, Marco Aurélio Lana Peixoto, Ho Jin Kim, Jacqueline Palace, Maria Isabel Leite, Srilakshmi M. Sharma, Fereshteh Ashtari, Rahele Kafieh, Lekha Pandit, Orhan Aktas, Philipp Albrecht, Letizia Leocani, Itay Lotan, Sasitorn Siritho, Jérôme de Seze, Romain Marignier, Caroline Froment Tilikete, Denis Bernardi Bichuetti, Ivan Maynart Tavares, Ayse Altintas, Anu Jacob, Saif Huda, Ibis Soto de Castillo, Lawrence J. Cook, Michael R. Yeaman, Axel Petzold, Alexander U. Brandt, Friedemann Paul, Frederike C. Oertel, Hanna G. Zimmermann, with the Guthy Jackson Charitable Foundation—International Clinical Consortium and CROCTINO Collaborators   +40 more
wiley   +1 more source

Anti-Symmetric Wing Transmitter for Angular Misalignment Insensitive Wireless Power Transfer to Biomedical Implants

IEEE Access, 2023
This paper presents an anti-symmetric wing transmitter (ASW-Tx) for angular misalignment insensitive WPT to biomedical implants. Symmetrical field distribution on two orthogonal planes of $Oxz$ and $Oyz$ are analyzed theoretically to obtain stable ...
Hoang Le-Huu, Chulhun Seo
doaj   +1 more source