What's interesting is how many things can be made to lase, and how many ways there are to do it. The list appears to be never ending and new entries are made al

What's interesting is how many things can be made to lase, and how many ways there are to do it. The list appears to be never ending and new entries are made all the time. https://en.wikipedia.org/wiki/List_of_laser_types https://en.wikipedia.org/wiki/List_of_laser_types