Results 11 to 20 of about 2,146,457 (416)

Dirac Theory and Topological Phases of Silicon Nanotube [PDF]

open access: yesEurophysics Letters 98, 67001 (2012), 2012
Silicon nanotube is constructed by rolling up a silicene, i.e., a monolayer of silicon atoms forming a two-dimensional honeycomb lattice. It is a semiconductor or an insulator owing to relatively large spin-orbit interactions induced by its buckled ...
Ezawa M., Motohiko Ezawa
core   +2 more sources

A gate-defined silicon quantum dot molecule [PDF]

open access: yesAppl. Phys. Lett. 92, 222104(2008), 2008
We report electron transport measurements of a silicon double dot formed in multi-gated metal-oxide-semiconductor structures with a 15-nm-thick silicon-on-insulator layer.
Fujisawa, T.   +5 more
core   +2 more sources

Towards spin injection from silicon into topological insulators: Schottky barrier between Si and Bi2Se3 [PDF]

open access: yesAppl. Phys. Lett. 101, 023102 (2012), 2012
A scheme is proposed to electrically measure the spin-momentum coupling in the topological insulator surface state by injection of spin polarized electrons from silicon. As a first approach, devices were fabricated consisting of thin (
C. Ojeda-Aristizabal   +6 more
core   +2 more sources

Measurement of thermal conductance of silicon nanowires at low temperature [PDF]

open access: yes, 2006
We have performed thermal conductance measurements on individual single crystalline silicon suspended nanowires. The nanowires (130 nm thick and 200 nm wide) are fabricated by e-beam lithography and suspended between two separated pads on Silicon On ...
Casimir H. B. G.   +3 more
core   +4 more sources

Dual Polarization and Bi-Directional Silicon-Photonic Optical Phased Array With Large Scanning Range

open access: yesIEEE Photonics Journal, 2022
We propose a large scanning range silicon optical phased array (OPA), which is polarization multiplexed and bi-directional with only one waveguide grating antenna array.
Shi Zhao, Jingye Chen, Yaocheng Shi
doaj   +1 more source

Monolithic integration of erbium-doped amplifiers with silicon-on-insulator waveguides [PDF]

open access: yes, 2010
Monolithic integration of Al2O3:Er3+ amplifier technology with passive silicon-on-insulator waveguides is demonstrated. A signal enhancement of >7 dB at 1533 nm wavelength is obtained.
Agazzi, Laura   +7 more
core   +18 more sources

High-Q microresonators on 4H-silicon-carbide-on-insulator platform for nonlinear photonics

open access: yesLight: Science & Applications, 2021
The realization of high-quality (Q) resonators regardless of the underpinning material platforms has been a ceaseless pursuit, because the high-Q resonators provide an extreme environment for confining light to enable observations of many nonlinear ...
Chengli Wang   +15 more
semanticscholar   +1 more source

Investigation of the Optical Properties of Silicon-on-Insulator Microring Resonators Using Optical Backscatter Reflectometry

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2022
Introduction. Optical backscatter reflectometry is one of the most promising methods used to examine characteristic parameters relevant to the design of microring resonators.
I. A. Ryabcev   +8 more
doaj   +1 more source

Improving the acousto‐optical interaction by an introduction of a planarisation SiO2 layer

open access: yesElectronics Letters, 2021
This paper introduces a planarisation SiO2 layer into the configuration of ZnO‐silicon‐on‐insulator for constructing an acoustical resonant cavity to enhance the acoustic density on a silicon‐on‐insulator waveguide.
Rongwei Wang   +8 more
doaj   +1 more source

Photonic Integrated Reconfigurable Linear Processors as Neural Network Accelerators

open access: yesApplied Sciences, 2021
Reconfigurable linear optical processors can be used to perform linear transformations and are instrumental in effectively computing matrix–vector multiplications required in each neural network layer.
Lorenzo De Marinis   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy