THz generation at SwissFEL with photonic structures

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In a wonderful collaboration with our partners from Switzerland, we have recently been able to show that the ideas and capabilities we use to accelerate electrons, namely inverse photonic design, are also excellent for generating terahertz radiation from highly relativistic electron beams. For this purpose, we have developed a structure in Erlangen using inverse photonic design, which our partners at PSI have fabricated and used at the 3 GeV electron beam of SwissFEL to generate radiation in an interesting wavelength range in this novel way. The paper has just appeared in ACS Photonics, see here.