相关实验视频

Updated: Jul 9, 2025

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Published on: July 24, 2015

基于石墨烯三明治结构的光学双稳定性调制,具有拓接口模式

Fengyu Li, Jiao Xu, Wei Li

|December 2, 2023

概括

这项研究证明了使用带有拓接口模式的石墨烯三明治结构进行光学双稳定性调制. 这种新的方法显著降低了在太赫兹应用中光学双稳定性的门.

科学领域:

光学和光子学在光学和光子学.
凝聚物质物理学凝聚物质物理学
材料科学材料科学材料科学

背景情况:

石墨烯表现出强烈的非线性光学效应,使其适合用于光学设备.
光子晶体提供独特的光操纵特性.
拓接口模式提供了增强的光控制,包括单向和高传输.

研究的目的:

在一个新的石墨烯-石墨烯光子晶体三明治结构中研究光学双稳定性调制.
探索拓接口模式在降低光学双稳定性值方面的作用.
分析各种参数对光学双稳性能的影响.

主要方法:

制作一个三明治结构,将石墨烯与光子晶体结合起来.
在结构中理论研究光传播和非线性光学效应.
对拓接口模式及其光限制性质的分析.
数值模拟以研究光学可见度稳定的依赖事件角度,费米能量,放松时间和石墨烯层数量.

主要成果:

由于拓界面模式,拟议的结构具有光限制性.
拓接口模式的高单向性和传输效率有助于降低光学双向性值.
拓接口模式确保在外部干扰下在两个稳定状态之间稳定切换.
发现光学双稳定性对事件角度,费米能量,放松时间和石墨烯层数量敏感.

结论:

一个带有拓接口模式的石墨烯三明治结构可以有效地调节在太赫兹频率上的光学双稳定性.
该研究实现了低至10^5V/m的光学双稳定性值,接近弱场条件.
这项研究为开发先进的光学切换和限制设备提供了有前途的途径.

更多相关视频

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Published on: March 19, 2016

Patterning via Optical Saturable Transitions - Fabrication and Characterization

Patterning via Optical Saturable Transitions - Fabrication and Characterization

Published on: December 11, 2014

相关概念视频

MOSFET: Enhancement Mode

MOSFET: Enhancement Mode

Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...

Modes of Operations of BJT

Modes of Operations of BJT

A Bipolar Junction Transistor (BJT) is a versatile component in electronics, functioning in four distinct modes based on the biasing of its junctions: active, saturation, cut-off, and inverted modes.
Active Mode: The most common mode for amplification, the active mode features a forward-biased emitter-base junction and a reverse-biased base-collector junction. This setup enables electrons to be injected from the emitter to the base while blocking the majority carriers at the collector. The...

Switching of BJT

Switching of BJT

Switching behavior in Bipolar Junction Transistors (BJTs) is a fundamental aspect utilized in various electronic circuits, particularly for digital logic applications like switches and amplifiers. In a typical switching circuit, a BJT alternates between cut-off and saturation modes, corresponding to the "off" and "on" states, respectively, thus behaving like an ideal switch.
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are...