Explore the Fascinating Free Electron Laser

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The discussion centers on the interest in Free Electron Lasers (FEL) and the challenge of finding technical information on their design and theory. The poster expresses a desire to build an FEL in a home garage and seeks guidance on several key aspects, including the minimum acceleration required for coherent light and effective methods to achieve it, likely through cyclotron techniques. Additionally, questions are raised about the necessary undulation of the electron beam to produce coherent light. Resources such as a New Atlas article and YouTube videos on DIY FELs are mentioned as potential references. Overall, the conversation highlights the enthusiasm for exploring FEL technology despite the scarcity of accessible technical resources.
rasperas
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Well, I've been interested in lasers for quite a while-- but the FEL is really what fascinates me. I haven't been able to find much technical information on the internet about it, and my library is decrepid. But, still, never-the-less, I believe, just like any other laser, that it can be built in my garage. I know the basics of how it works. 1) Does anyone know where technical data on FEL design/theory is? 2) Would would be the mininum amount of acceleration that would have to be achieved for coherent light- and what would be the best way of achieving this (probably cyclotron- but my acceleration skills are rusty)? 3) How much would the electron beam have to be undulated to attain coherent light? Thankyou. :biggrin:
 
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