Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

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
Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

2.8K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
2.8K
Electromagnetic Waves01:30

Electromagnetic Waves

8.6K
James Clerk Maxwell formulated a single theory combining all the electric and magnetic effects scientists knew during that time, calling the phenomena his theory predicted “Electromagnetic waves”. He brought together all the work that had been done by brilliant physicists such as Oersted, Coulomb, Gauss, and Faraday and added his own insights to develop the overarching theory of electromagnetism. Maxwell’s equations, combined with the Lorentz force law, encompass all the laws...
8.6K
Plane Electromagnetic Waves I01:30

Plane Electromagnetic Waves I

3.6K
The existence of combined electric and magnetic fields that propagate through space as electromagnetic (EM) waves is the most significant prediction of Maxwell's equations. As Maxwell's equations hold in free space, the predicted electromagnetic waves do not require a medium for their propagation. An EM wave comprises an electric field, defined as the force per charge on a stationary charge, and a magnetic field, which is the force per charge on a moving charge.
The EM field is assumed...
3.6K
Intensity Of Electromagnetic Waves01:22

Intensity Of Electromagnetic Waves

4.5K
The energy transport per unit area per unit time, or the Poynting vector, gives the energy flux of an electromagnetic wave at any specific time. For a plane electromagnetic wave with E0 and B0 as the peak electric and magnetic fields and traveling along the x-axis, the time-varying energy flux can be given by the following equation:
4.5K
Plane Electromagnetic Waves II01:29

Plane Electromagnetic Waves II

3.0K
Consider a plane wavefront traveling in position x-direction with a constant speed. This wavefront can be utilized to obtain the relationship between electric and magnetic fields with the help of Faraday's law.
3.0K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Complex-to-binary amplitude hologram conversion using complex loss functions.

Optics express·2025
Same author

Deep learning denoising diffusion probabilistic model applied to holographic data synthesis.

Optics letters·2024
Same author

Color multilayer holographic near-eye augmented reality display.

Scientific reports·2023
Same author

Objective method for visual performance prediction.

Journal of the Optical Society of America. A, Optics, image science, and vision·2023
Same author

Non-interferometric key recording applied to a joint transform cryptosystem.

Optics letters·2023
Same author

Improved phase hologram generation of multiple 3D objects.

Applied optics·2022
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
查看所有相关文章

相关实验视频

Updated: Jun 24, 2025

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

10.8K

实验性的光学加密与完全复杂的调制.

Juan Andrés González-Moncada, Alejandro Velez-Zea, John Fredy Barrera-Ramírez

    Applied optics
    |June 10, 2024
    PubMed
    概括
    此摘要是机器生成的。

    本研究引入了一种使用双随机相位编码的新光学加密方法,以提高安全性. 该技术提供了更大的多功能性,允许独立控制相位和振幅,提高解密质量.

    更多相关视频

    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    9.0K
    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
    09:23

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

    Published on: May 30, 2014

    14.5K

    相关实验视频

    Last Updated: Jun 24, 2025

    Quasi-light Storage for Optical Data Packets
    07:45

    Quasi-light Storage for Optical Data Packets

    Published on: February 6, 2014

    10.8K
    Generation and Coherent Control of Pulsed Quantum Frequency Combs
    06:42

    Generation and Coherent Control of Pulsed Quantum Frequency Combs

    Published on: June 8, 2018

    9.0K
    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
    09:23

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

    Published on: May 30, 2014

    14.5K

    科学领域:

    • 光学是什么?光学是什么?光学是什么?
    • 信息安全 信息安全
    • 密码学 密码学 密码学 密码学

    背景情况:

    • 光学加密系统为安全的数据传输提供了独特的优势.
    • 现有的方法在灵活性和安全性方面可能存在局限性.
    • 联合变形校正器 (JTC) 系统是光学信息处理的关键组成部分.

    研究的目的:

    • 介绍一种使用双随机相位编码进行实验加密的新方法.
    • 为了实现完全复杂的调制,使用单相空间光调制器.
    • 提高光学加密系统的多功能性和安全性.

    主要方法:

    • 使用双相编码为JTC加密系统创建仅相位的全息图.
    • 使用单相空间光调制器进行复杂调制.
    • 为加密和解密生成优化的随机相口罩.

    主要成果:

    • 成功演示了各种对象的实验性加密和解密.
    • 实现了对加密密钥和对象的相位和振幅的独立操纵.
    • 由于复杂的调制和优化的面具,观察到解密对象的质量提高.

    结论:

    • 拟议的方法为光学加密提供了一种多功能和有效的方法.
    • 实验验证证证实了该方案提高解密质量的能力.
    • 这种技术推动了光学安全和信息处理领域的发展.