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https://pubmed.ncbi.nlm.nih.gov/38114546
A four-mirror bow-tie cavity in waveguide free-electron laser oscillators can solve the spectral gap problem and enhance long-wavelength laser performance.
https://pubmed.ncbi.nlm.nih.gov/38114546
A four-mirror bow-tie cavity in waveguide free-electron laser oscillators can solve the spectral gap problem and enhance long-wavelength laser performance.