Claude Cohen-Tannoudji: Light and Matter Lecture from “Light and Matter” at Dong Nan University (Southeast University), China
- Posted on
- 15.04.2009
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- Event Details
Supplimentary Materials
Chapter 3 of 10: The Modern Description of Light
Light is at the same time an electromagnetic wave and an ensemble of photons. (7 minutes, 41 seconds)
Chapter 1 of 10: What is Light?
Claude Cohen-Tannoudji discusses how light is produced, and how it interacts with matter. (5 minutes)
Chapter 2 of 10: Early Models for Light
From Huygens, Hooke, Young and Fresnel's ideas on light waves to Maxwell's equations that unified electricity, magnetism, optics and radio waves. (5 minutes)
Chapter 3 of 10: The Modern Description of Light
Light is at the same time an electromagnetic wave and an ensemble of photons. (7 minutes, 41 seconds)
Chapter 4 of 10: Laser Light
There are two types of emission processes: spontaneous emission of a photon and stimulated emission of a photon. (6 minutes, 54 seconds)
Chapter 5 of 10: Applications of Lasers
Laser-based devices touch many parts of our lives, from medical applications to compact discs. (6 minutes, 9 seconds)
Chapter 6 of 10: Spinning Tops
In optical pumping, light is used to manipulate atomic angular momentum, raising electrons from lower energy levels to higher ones. (8 minutes, 27 seconds)
Chapter 7 of 10: Ultracold Atoms
Methods have been developed using light to trap atoms and freeze them at ultracold temperatures. (6 minutes, 12 seconds)
Chapter 8 of 10: Atomic Clocks
Laser cooling has many useful applications; for instance, it has allowed atomic clocks to be created, which can keep time with extreme precision. (6 minutes, 42 seconds)
Chapter 9 of 10: Manipulating Atomic Waves
Laser cooling allows researchers to observe the wave-like interference effects of atoms. (6 minutes, 45 seconds)
Chapter 10 of 10: Conclusions
Better understanding of light-matter interactions has enabled important advances: the invention of new light sources and new schemes for manipulating atoms. (4 minutes, 38 seconds)
Description
Claude Cohen-Tannoudji discusses new mechanisms for generating light, and how these form the basis of a host of devices, including atomic clocks and atom lasers.
