Транскрипція відео
The European laser is so cool.
That's a 4-level FF transition, which provides for high power output,
and its quantum efficiency is off the charts.
What are you going to use it for?
I have no idea.
The European laser is so cool.
That's a 4-level FF transition, which provides for high power output,
and its quantum efficiency is off the charts.
What are you going to use it for?
I have no idea.