"纳米材料光子学"专题期刊的编辑
Raul Rangel-Rojo1, Luciana R P Kassab2, Tiziana Cesca3
1Department of Optics, Centro de Investigación Científica y Educación Superior de Ensenada (CICESE), Ensenada 22880, Mexico.
Micromachines
|October 26, 2024
概括
理查德·费曼 (Richard Feynman) 是一个著名的物理学家.
科学领域:
- 纳米技术和分子工程.
- 纳米科学和分子制造的基础.
背景情况:
- 灵感来自于理查德·费曼在1959年的讲座"底部有很多空间".
- 在原子和分子尺度上操纵物质的早期概念化.
相关概念视频
01:35Light as Energy
The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit less...
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit less...
01:25Overview of Electron Microscopy
The wavelengths of visible light ultimately limit the maximum theoretical resolution of images created by light microscopes. Most light microscopes can only magnify 1000X, and a few can magnify up to 1500X. Electrons, like electromagnetic radiation, can behave like waves, but with wavelengths of 0.005 nm, they produce significantly greater resolution up to 0.05 nm as compared to 500 nm for visible light. An electron microscope (EM) can create a sharp image that is magnified up to 2,000,000X.