Results 131 to 140 of about 4,112,688 (369)

Integration of photonic nanojets and semiconductor nanoparticles for enhanced all-optical switching

Nature Communications, 2015
All-optical switching is the foundation of emerging all-optical (terabit-per-second) networks and processors. All-optical switching has attracted considerable attention, but it must ultimately support operation with femtojoule switching energies and ...
B. Born, Jeffrey D. A. Krupa, Simon Geoffroy-Gagnon, J. Holzman   +3 more
semanticscholar   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

Advanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai, Md Shakhawath Hossain, Nhat Minh Nguyen, Yongliang Chen, Chaohao Chen, Xiaoxue Xu, Quang Thang Trinh, Toan Dinh, Toan Trong Tran   +8 more
wiley   +1 more source

Integrated five-port non-blocking optical router based on mode-selective property

Nanophotonics, 2018
In this paper, we propose and demonstrate a five-port optical router based on mode-selective property. It utilizes different combinations of four spatial modes at input and output ports as labels to distinguish its 20 routing paths. It can direct signals
Jia Hao, Zhou Ting, Fu Xin, Ding Jianfeng, Zhang Lei, Yang Lin   +5 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

DESIGN AND ANALYSIS OF OPTICAL SWITCH FOR DATA CENTER NETWORKS INCORPORATING ACO-OFDM WITH PAPR REDUCTION [PDF]

Journal of Engineering Science and Technology, 2018
Currently optical data centers heavily rely on electronics for information transfer. In near future electronic switching will face problem in supporting higher data rates. Therefore, a slow migration from electronic to optical switching has been observed.
RAVI KUMAR, ANURAG TRIPATHI
doaj  

Nonlinear switching of low-index defect modes in photonic lattices

, 2008
We address nonlinear signal switching between two low-index defect channels induced in periodic optical lattices. In contrast to conventional directional couplers, where the guiding mechanism is total internal reflection or refraction, in such Bragg-type
A. Yariv, Fangwei Ye, G. P. Agrawal, J. D. Joannopoulos, Lluis Torner, S. M. Jensen, Victor A. Vysloukh, Yaroslav V. Kartashov   +7 more
core   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Multi-level cascaded electromagnetically induced transparency in cold atoms using an optical nanofibre interface

New Journal of Physics, 2015
Ultrathin optical fibres integrated into cold atom setups are proving to be ideal building blocks for atom-photon hybrid quantum networks. Such optical nanofibres (ONFs) can be used for the demonstration of nonlinear optics and quantum interference ...
Ravi Kumar, Vandna Gokhroo, Síle Nic Chormaic   +2 more
doaj   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

Advanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton, Naëmi Leo, Jakub Jurczyk, Claire Donnelly, Dédalo Sanz‐Hernández, Luka Skoric, Nicholas Mille, Stefan Stanescu, Donald A MacLaren, Rachid Belkhou, Aurelio Hierro‐Rodriguez, Amalio Fernández‐Pacheco   +11 more
wiley   +1 more source

All-optical active THz metasurfaces for ultrafast polarization switching and dynamic beam splitting

Light: Science & Applications, 2018
Miniaturized ultrafast switchable optical components with an extremely compact size and a high-speed response will be the core of next-generation all-optical devices instead of traditional integrated circuits, which are approaching the bottleneck of ...
Longqing Cong, Y. Srivastava, Huifang Zhang, Xueqian Zhang, Jiaguang Han, Ranjan Singh   +5 more
semanticscholar   +1 more source