Results 71 to 80 of about 176,788 (276)

Interaction-Free All-Optical Switching via Quantum-Zeno Effect

, 2010
We propose a novel interaction-free scheme for all-optical switching which does not rely on the physical coupling between signal and control waves. The interaction-free nature of the scheme allows it to overcome the fundamental photon-loss limit imposed ...
Joseph B. Altepeter, M. Born, M. O. Scully, Prem Kumar, Yu-Ping Huang   +4 more
core   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

Switchable Optical Properties of Dyes and Nanoparticles in Electrowetting Devices

Nanomaterials
The optical properties of light-absorbing materials in optical shutter devices are critical to the use of such platforms for optical applications. We demonstrate switchable optical properties of dyes and nanoparticles in liquid-based electrowetting-on ...
Urice N. Tohgha, Jack T. Ly, Kyung Min Lee, Zachary M. Marsh, Alexander M. Watson, Tod A. Grusenmeyer, Nicholas P. Godman, Michael E. McConney   +7 more
doaj   +1 more source

Experimental demonstration of an optical Feynman gate for reversible logic operation using silicon micro-ring resonators

Nanophotonics, 2018
Currently, the reversible logic circuit is a popular research topic in the field of information processing as it is a most effective approach to minimize power consumption, which can achieve the one-to-one mapping function to identify the input signals ...
Tian Yonghui, Liu Zilong, Ying Tonghe, Xiao Huifu, Meng Yinghao, Deng Lin, Zhao Yongpeng, Guo Anqi, Liao Miaomiao, Liu Guipeng, Yang Jianhong   +10 more
doaj   +1 more source

Tunable polarization-induced Fano resonances in stacked wire-grid metasurfaces

Communications Physics, 2021
Fano resonance is an important phenomenon for optical devices particularly for application in switching and sensing. Here, the authors demonstrate theoretically and experimentally that Fano resonances can be induced using the polarization dependent ...
Xavier Romain, Riccardo Degl’Innocenti, Fadi I. Baida, Philippe Boyer   +3 more
doaj   +1 more source

Effective electro-optical modulation with high extinction ratio by a graphene-silicon microring resonator

, 2015
Graphene opens up for novel optoelectronic applications thanks to its high carrier mobility, ultra-large absorption bandwidth, and extremely fast material response.
Bao Q., Bao Q., Bao Q. L., Bolotin K. I., Bonaccorso F., Cai X., Ding Y., Du X., Fang Z., Ferrari A. C., Ferrari A. C., Gan X., Geim A. K., Gu T., Hao Hu, Hendry E., Kim J., Kim S., Kresten Yvind, Kumar N., Lars Hagedorn Frandsen, Li W., Li X. M., Liao L., Lin Y. M., Liu M., Liu M., N. Asger Mortensen, Nagashio K., Novoselov K. S., Novoselov K. S., Obraztsov P. A., Pospischil A., Qiu C., Sanshui Xiao, Wang F., Wang X., Xiaolong Zhu, Xing G., Yu L., Yunhong Ding, Zhou H., Zhu W., Zhu X., Zhu X.   +44 more
core   +2 more sources

Low‐Symmetry Weyl Semimetals: A Path to Ideal Topological States

Advanced Functional Materials, EarlyView.
This study presents a theoretical framework for realizing ideal Weyl semimetals, where Weyl nodes are well‐isolated at the Fermi level. The approach is exemplified in the low‐symmetry material Cu2SnSe3, which exhibits tunable topological phases, current‐induced orbital magnetization, and a strong circular photogalvanic effect, making it a promising ...
Darius‐Alexandru Deaconu, Varun Shah, Rodion Vladimirovich Belosludov, Mohammad Saeed Bahramy   +3 more
wiley   +1 more source

Resonant multilevel optical switching with phase change material GST

Nanophotonics, 2022
We demonstrate a multilevel optical memristive switch based on a silicon Fabry–Perot resonator. The resonator is constructed by a pair of waveguide Bragg gratings at the ends of a multimode interferometer (MMI) covered with sub-micrometer-size Ge2Sb2Te5 (
Wu Di, Yang Xing, Wang Ningning, Lu Liangjun, Chen Jianping, Zhou Linjie, Rahman B. M. Azizur   +6 more
doaj   +1 more source

Wavelength‐Dependent Differential Amplification of Raman Scattering by Chiral Gold Nanorods for Multiplexed Encoding

Advanced Functional Materials, EarlyView.
The SERS spectra of reporter molecules adsorbed on chiral gold nanorods depends on the handedness of circularly polarized light (CPL‐SERS). The bisignate plasmonic CD spectra of chiral nanorods provides wavelength‐dependent CPL‐SERS. Selective discrimination of chiral nanorod handedness and different Raman reporters allow highly sensitive codification ...
Andrés Serrano‐Freijeiro, Carlos Renero‐Lecuna, Manuel Obelleiro‐Liz, Víctor F. Martín, Diptesh Dey, José M. Taboada, George C. Schatz, Isabel Pastoriza‐Santos, Jorge Pérez‐Juste, Luis M. Liz‐Marzán   +9 more
wiley   +1 more source

Organization of the channel-switching process in parallel computer systems based on a matrix optical switch [PDF]

After a classification and analysis of electronic and optoelectronic switching devices, the design principles and structure of a matrix optical switch is described.
Golomidov, Y. V., Li, S. K., Popov, S. A., Smolov, V. B.   +3 more
core   +1 more source