【华中科技大学-激光原理与技术】How a Laser Works

[视频作者] nanoHUST2015

[视频时长] 4:53

[视频类型] 野生技能协会

https://www.youtube.com/watch?v=oUEbMjtWc-A&t=161s Bill shows how the three key characteristics of laser light - single wavelength, narrow beam, and high intensity - are made. http://www.engineerguy.com/elements