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相关概念视频

UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

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In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this...
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MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

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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...
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相关实验视频

Updated: Jul 2, 2025

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

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多功能的光子分子开关在多模微复原器中.

Zihan Tao1, Bitao Shen1, Wencan Li1

  • 1State Key Laboratory of Advanced Optical Communications System and Networks, School of Electronics, Peking University, Beijing, 100871, China.

Light, science & applications
|February 19, 2024
PubMed
概括
此摘要是机器生成的。

我们展示了一种新的芯片上的光子分子,使用多模微环,提供对光学模式的动态控制. 这一突破为6G无线通信等先进应用提供了灵活的光子分子功能.

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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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科学领域:

  • 光子学和量子光学 量子光学和量子光学
  • 综合光子学 综合光子学
  • 人造的光子分子.

背景情况:

  • 人工光子分子模仿原子物理使用合的微复原器.
  • 现有系统缺乏重新配置性,需要微妙的外部刺激或机械调整.
  • 这些局限性限制了光子分子的潜在应用.

研究的目的:

  • 提出一个多功能芯片上的光子分子在多模微环中.
  • 开发一种灵活的方法来动态控制空间模式及其相互作用.
  • 为了使更广泛的应用程序能够实现可切换的功能.

主要方法:

  • 采用多模微链,用于芯片上的光子分子构造.
  • 实施灵活的调节方法来控制空间模式的存在和相互作用的强度.
  • 展示单模式和多模式状态之间的动态转换.

主要成果:

  • 实现了光子分子的"关闭/启动"功能.
  • 在"开启"状态下,展示了灵活的,多维控制模式分割 (合强度和相差),类似于斯特拉克效应.
  • 在"关闭"状态下展示了低损失的单模转换 (Q_i ~ 1000万),具有超紧的曲尺寸 (FSR ~ 115 GHz).
  • 打破了传统的自由光谱范围 (FSR) - 质量 (Q) 因素的权衡.

结论:

  • 开发了一种灵活和便携式的集成光子分子系统.
  • 启用超宽带和高分辨率毫米波光子操作.
  • 将光子分子的范围从基本物理扩展到实际应用,包括非线性光学信号处理和6G无线通信.