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physics.optics2024★ 361 cited
Phase Matching of High-Order Harmonics in Hollow Waveguides
Charles G. Durfee, Andy R. Rundquist, Sterling Backus +3
We investigate the case of phase-matched high-harmonic generation in a gas-filled capillary waveguide, comparing in detail theory with experiment. We observe three different regime…
physics.optics2024★ 905 cited
Phase-Matched Generation of Coherent Soft-X-Rays
Andy Rundquist, Charles G. Durfee, Zenghu Chang +4
Phase-matched harmonic conversion of visible laser light into soft x-rays was demonstrated. The recently developed technique of guided-wave frequency conversion was used to upshift…