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相关概念视频

Standing Waves in a Cavity01:28

Standing Waves in a Cavity

1.0K
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
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相关实验视频

Updated: Sep 10, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

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具有嵌入量子点的电机调节,波导合的光子晶体腔

L A F Brunswick1, L Hallacy1, R Dost1

  • 1School of Mathematical and Physical Sciences, University of Sheffield, Sheffield S3 7RH, U.K.

ACS photonics
|August 27, 2025
PubMed
概括

这项研究引入了可调节的芯片内微空洞系统,使用微电机床和量子点来克服量子技术的制造缺陷. 系统显示精确的波长控制和增强的量子发射器性能.

关键词:
普尔塞尔效应微电机系统纳米光子学光子共振器量子光学

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Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
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Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
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Last Updated: Sep 10, 2025

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Resonance Fluorescence of an InGaAs Quantum Dot in a Planar Cavity Using Orthogonal Excitation and Detection
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科学领域:

  • 量子光学和光子学
  • 纳米技术和微型制造
  • 固态物理

背景情况:

  • 芯片上的微腔与量子发射器对于量子技术至关重要.
  • 制造上的缺陷限制了这些量子设备的性能.
  • 设备尺寸的波动需要主动调节机制.

研究的目的:

  • 开发可调节的芯片内微腔系统,以减轻制造上的缺陷.
  • 为了证明对空洞模式波长和量子发射器能量的精确控制.
  • 在一个共同的波导上实现量子设备的可扩展集成.

主要方法:

  • 使用一个嵌入量子点的1D光子晶体腔.
  • 通过指数调制使用微电机床调节腔模式.
  • 使用量子局限的斯塔克效应来调整量子点辐射能量.

主要成果:

  • 达到1.8nm的最大电压可控腔调节范围.
  • 证明了空腔与总线波导的侧合,以实现可扩展性.
  • 观测到一个增强的排放率与3.5的普尔塞尔因子调整量子点.

结论:

  • 这种系统有效地弥补了芯片内量子设备的制造缺陷.
  • 已证明的调整机制对于高性能和可扩展的量子技术至关重要.
  • 集成可调节的空洞和量子点为先进的量子应用铺平了道路.