can lasers work without chemicals?

Question

will the laser work if electrons are there to be stimulated?

Answer 1

yes it will still work

Answer 2

The very first type of visible spectrum laser was a ruby laser that used a solid synthetic ruby crystal as the lasing medium. The ends of the crystal are cut to be exactly parallel then both ends are silvered, on fully, the other partially. A pulse of light is emitted into the partially silvered end and the photons are reflected back and forth with the crystal structure of the ruby until they are emitted out the partially silvered end again in a coherent beam.

Answer 3

LASER is an acronym, standing for "Light Amplification by Stimulated Emission of Radiation." The Stimulated Emission part (place your dirty joke here) refers to the tendency of excited atoms to emit little bits of light of a certain color when placed in a bath of the same color--thereby adding to the total amount of that color of light flying around in the bath. A laser generally requires three components: a medium (the atoms to excite and reradiate), an exciter (something to kick the atoms up to a high energy state), and a container for the light bath (mirrors).

It turns out that you don't actually need atoms, you just need any sort of charged particle (or agglomeration thereof) which has well-defined energy levels. There is something called a "free-electron laser" which uses the excitations of a large number of electrons, none of which belongs to any particular atom.

Answer 4

i don't know that..but as far as i know, lasers are projecterd from somekind of stone..crystal maybe.