•Dye lasers use a source laser known as the pump laser
to excite another laser
known as the dye laser.
•The dye laser consists of a flowing dye which exhibits desirable properties such as excitation and
emission.
•The lasing
medium is a fluorescent dye (e.g. Rhodamine
6G) which is dissolved in an organic
solvent such as ethanol or
ethylene glycol
•The laser can be tuned, usually by a rotatable filter or prism
•The dye must be circulated and cooled to prevent it
being bleached or over-heated