Laser Energy

[Kelly Boswel]

What is laser energy? How is it formed?How can it be converted?Where does it come from? How can it be used? How expensive is it?

[Hamish]

Laser 'energy' is light it is prdoced by a processes called stimulated emission which involves exciting atoms or molecules so they all emmit light at the same time. This produces light of one wavelength and is usualled produced as a focused beam. Efficiencies are very low generally and it is the narrow wavelengths and the tight focusing that are the most usefull factors.

[Skids]

LASER stands for Light Amplification by Stimulated Emission of Radiation.

[Cloned]

most of it's energy is heat, about 95%. They used to be expensive when they used ruby lasers, but now they use cheaper ones. This is why u can't make hand held ones (like in the movies that slice through people)without cold fusion. U can make ur own cheap laser by getting some strawberry jelly a piece of card with a hole in, and a flash from a camera. this makes the emissions and you get a flash of red laser.