Then based on electromagnetic theories, incident wave is not totally reflected back, there is also a refractivewave in the second medium.
但由电磁场理论，入射波并不是简单地全部返回原媒质，而是要在第二种媒质中存在一折射波。
2
Finally the effect of refractive index gradient on the wave surface quality of laser beam is discussed.
讨论了折射率梯度对传输激光波面质量的影响和波面补偿的可能性。
3
Random fluctuation of turbulence brings random fluctuation of refractive index and makes atmosphere become a random fluctuation medium, which destroys the coherence of light-wave.