Results 121 to 130 of about 355,925 (390)

Cross-Layer Platform for Dynamic, Energy-Efficient Optical Networks [PDF]

open access: yes, 2011
The design of the next-generation Internet infrastructure is driven by the need to sustain the massive growth in bandwidth demands. Novel, energy-efficient, optical networking technologies and architectures are required to effectively meet the stringent ...
Lai, Caroline Phooi-Mun
core   +2 more sources

Near‐Infrared Circularly Polarized Electroluminescence with Switchable Handedness in Organic LEDs

open access: yesAdvanced Functional Materials, EarlyView.
The first fully‐organic circularly polarized near‐infrared OLED, using a co‐assembled active layer of ITIC and a chiral inducer, exhibits dissymmetry values up to 0.074 and 1.65 Wsr−1m−2 radiance. The circular polarization sign can be switched by manipulating the position of the recombination zone, resulting in enhanced device performance and stability.
Francesco Zinna   +4 more
wiley   +1 more source

Study of hybrid optical burst switching networks

open access: yesTongxin xuebao, 2005
The hybrid optical burst switching (HOBS) was proposed, and investigate the HOBS based a ring topology with numerical simulation. Results indicate that the packet lost ratio in HOBS is much less than that in OBS, and its performance depends on some ...
PENG Peng   +3 more
doaj   +2 more sources

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

open access: yesAdvanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar   +8 more
wiley   +1 more source

Tunable 4-channel ultra-dense WDM demultiplexer with III-V photodiodes integrated in silicon-on-insulator [PDF]

open access: yes, 2012
A tunable 4-channel ultra-dense WDM demultiplexer with 0.25nm channel spacing is demonstrated with III-V photodiodes integrated on Silicon-on-Insulator using rib waveguides.
De Heyn, Peter   +4 more
core  

On optimization of optical packet switches with reconfiguration overhead [PDF]

open access: yes, 2005
Optical packet switching is one of the most promising technologies for carrying IP traffic over WDM optical networks. For optical packet switch (OPS) design, due to the reconfiguration overhead in the switch fabric, packet delay and speedup are two key ...
Wu, B, Yeung, KL
core   +1 more source

Carbon Nanotube 3D Integrated Circuits: From Design to Applications

open access: yesAdvanced Functional Materials, EarlyView.
As Moore's law approaches its physical limits, carbon nanotube (CNT) 3D integrated circuits (ICs) emerge as a promising alternative due to the miniaturization, high mobility, and low power consumption. CNT 3D ICs in optoelectronics, memory, and monolithic ICs are reviewed while addressing challenges in fabrication, design, and integration.
Han‐Yang Liu   +3 more
wiley   +1 more source

Discovery of an Intrinsic Antiferromagnetic Semiconductor EuSc2Te4 With Magnetism‐Driven Nonlinear Transport

open access: yesAdvanced Functional Materials, EarlyView.
EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee   +15 more
wiley   +1 more source

3D Nano‐architected Polymer Shell Enables Reconfigurable Stabilized Blue Phase Soft Crystals

open access: yesAdvanced Functional Materials, EarlyView.
Spherical polymer shells featuring nanostructure of blue phase (BP) disclinations form via in situ photo‐polymerization within BP liquid crystals, providing controlled anchoring for BP nucleation and growth at room temperature and beyond. This architected confinement enhances BP thermal stability over a broad temperature range while enabling dynamic ...
Sepideh Norouzi   +8 more
wiley   +1 more source

On the Highly Stable Performance of Loss-Free Optical Burst Switching Networks

open access: yesAdvances in Electrical and Electronic Engineering, 2016
Increase of bandwidth demand in data networks, driven by the continuous growth of the Internet and the increase of bandwidth greedy applications, raise the issue of how to support all the bandwidth requirements in the near future. Three optical switching
Milos Kozak   +2 more
doaj   +1 more source

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