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相关概念视频

The Wave Nature of Light02:12

The Wave Nature of Light

48.8K
The nature of light has been a subject of inquiry since antiquity. In the seventeenth century, Isaac Newton performed experiments with lenses and prisms and was able to demonstrate that white light consists of the individual colors of the rainbow combined together. Newton explained his optics findings in terms of a "corpuscular" view of light, in which light was composed of streams of extremely tiny particles traveling at high speeds according to Newton's laws of motion. 
48.8K
Photoelectric Effect02:26

Photoelectric Effect

29.6K
When light of a particular wavelength strikes a metal surface, electrons are emitted. This is called the photoelectric effect. The minimum frequency of light that can cause such emission of electrons is called the threshold frequency, which is specific to the metal. Light with a frequency lower than the threshold frequency, even if it is of high intensity, cannot initiate the emission of electrons. However, when the frequency is higher than the threshold value, the number of electrons ejected...
29.6K
Propagation Speed of Electromagnetic Waves01:30

Propagation Speed of Electromagnetic Waves

3.4K
Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
3.4K
Kinetic Molecular Theory: Molecular Velocities, Temperature, and Kinetic Energy03:07

Kinetic Molecular Theory: Molecular Velocities, Temperature, and Kinetic Energy

27.5K
The kinetic molecular theory qualitatively explains the behaviors described by the various gas laws. The postulates of this theory may be applied in a more quantitative fashion to derive these individual laws.
27.5K
Kinetic Theory of an Ideal Gas01:12

Kinetic Theory of an Ideal Gas

3.5K
A mole is defined as the amount of any substance that contains as many molecules as there are atoms in exactly 12 grams of carbon-12. An Italian scientist Amedeo Avogadro (1776–1856) formed the  hypothesis that equal volumes of gas at equal pressure and temperature contain equal numbers of molecules, independent of the type of gas. Later, the hypothesis was developed to form the SI unit for measuring the amount of any substance.
The number of molecules in one mole is called...
3.5K
Basic Postulates of Kinetic Molecular Theory: Particle Size, Energy, and Collision02:43

Basic Postulates of Kinetic Molecular Theory: Particle Size, Energy, and Collision

34.0K
The ideal-gas equation, which is empirical, describes the behavior of gases by establishing relationships between their macroscopic properties. For example, Charles’ law states that volume and temperature are directly related. Gases, therefore, expand when heated at constant pressure. Although gas laws explain how the macroscopic properties change relative to one another, it does not explain the rationale behind it.
34.0K

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相关实验视频

Updated: Jun 25, 2025

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

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非线性多模光子网络的光学运动理论.

Arkady Kurnosov1, Lucas J Fernández-Alcázar2,3, Alba Ramos2,3

  • 1Department of Physics, Wave Transport in Complex Systems Laboratory, Wesleyan University, Middletown, Connecticut 06459, USA.

Physical review letters
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概括

我们开发了多模非线性光子电路 (MMNPC) 的新理论,描述了不平衡运输. 这一通用理论涵盖了所有系统,包括负光学温度,并为光学冷却提供了洞察力.

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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Generation and Coherent Control of Pulsed Quantum Frequency Combs

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相关实验视频

Last Updated: Jun 25, 2025

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Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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科学领域:

  • 非线性光学是一种非线性光学.
  • 光子电路中的光子电路.
  • 热力学是一种热力学.

背景情况:

  • 多模非线性光子电路 (MMNPC) 的最新进展需要新的理论框架.
  • 现有的理论主要解决平衡性质,不解决不平衡传输问题.

研究的目的:

  • 为与热水库接触的MMNPC开发一个不平衡运输理论.
  • 建立适用于不同运输制度的通用缩放理论.

主要方法:

  • 结合了兰道尔形式主义和运动形式主义.
  • 开发了一个单参数缩放理论.

主要成果:

  • 该理论描述了从弹道到扩散系统的运输.
  • 包括具有正和负光学温度的场景.
  • 导出了一种关于热和功率导电性的光子Wiedemann-Franz定律.

结论:

  • 为基本理解MMNPC运输特性铺平了道路.
  • 在设计全光学冷却协议的潜在应用.