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Conferences > UFO > 2023 > F2 > F2.5

Direct Measurement of Attosecond Emission Delays in High Harmonic Generation

Adam S. Wyatt, David Lloyd, Richard T Chapman, Christopher Thornton, Paulina Majchrzak, Alfred Jones, Emma Springate, and Kevin O’Keeffe

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Abstract

We present direct measurements of attosecond delays in the emission of extreme ultraviolet pulses from high harmonic generation in different gases using an inline interferometer. Relative to argon, we measure a delay of -22 ± 8 as for krypton, -71 ± 8 as for xenon, 65 ± 3 as for nitrogen (N2) and 33 ± 3 as for carbon dioxide (both unaligned).

© 2023 UFOXIII

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