Am 14.11.2013 19:23, schrieb Samuel Benge:
> "Anthony D. Baye" <Sha### [at] spamnomorehotmailcom> wrote:
>> if you could use the light to drive an actual laser, it might be even more
>> efficient.
>
> Has anyone ever converted direct sunlight into a laser? Or by "laser," do you
> actually just mean "parallel light beam?"

Lasing media are typically pumped (i.e. supplied with energy to emit 
actual laser light) by some kind of conventional light source - so why 
not sunlight?

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