脖子
发表于 2025-3-28 17:56:31
Output Characteristics of the Laser,chanically. The rate equations describe temporal changes of atomic populations and light energy or the number of photons, neglecting the phase of the light and the atomic polarization. Therefore, the rate equations cannot be applied to subjects such as the frequency of the laser or the characteristics of multimode oscillation.
现实
发表于 2025-3-28 19:55:01
Electromagnetic Theory of Light,y in exceptional cases that the quantization of the electromagnetic field of laser light manifests any substantial effect. Therefore, in this chapter, we shall discuss the nature of light as expressed in terms of classical electromagnetic waves.