On Thu, 17 Jan 2002, Gerstein, Rachel wrote: > Could someone explain how the tuneable part of the dye laser works ? > What is being altered such that different wavelengths result ? The way I understand it is that the fluorphore emits a fairly broad band of radiation. One end of the resonating cavity consists of a tunable element (an etalon, grating, or prism) that selects a narrow portion of the light for reflection back into the cavity and amplification into the resulting laser emission. The specific wavelength can be selected by moving (e.g., rotating) the tunable element. -- Ted Heise <theise@netins.net> West Lafayette, IN, USA
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