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Technology / What are the feature(s) in a FEL laser that defines the output frequency?
« on: 23/02/2019 14:57:27 »
I came across an article and subsequently did a bit of research about the topic of a FEL laser (free electron laser).apparantly this technology can be used to generate a broad range of frequencies (visible light -> x-rays). What feature in the design defines the lasing frequency?