They work by inducing population inversion in a gain medium, such as a mixture of (*) helium and neon.
These devices pulse their output using Q-switching. They are used in combination with the Doppler effect to cool atoms. They work by inducing population inversion in a gain medium, such as a mixture of (*) helium and neon. These devices reflect off of the "pits" and "lands" on CDs and DVDs to allow the data to be read. For 10 points, name these devices that produce coherent light, often red.
These devices pulse their output using Q-switching. They are used in combination with the Doppler effect to cool atoms.
lasers