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8 June 2023 Attosecond pulse generation using incommensurate two-colour fields
Colm Fitzpatrick, Brendan Dromey, Mark Yeung
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Proceedings Volume 12582, Compact Radiation Sources from EUV to Gamma-rays: Development and Applications; 1258205 (2023) https://doi.org/10.1117/12.2665621
Event: SPIE Optics + Optoelectronics, 2023, Prague, Czech Republic
Abstract
The process of high-harmonic generation from solid density surfaces results in a train of ultrashort attosecond pulses. Isolating a single attosecond pulse is of interest for many reasons such as atomic and molecular time-scale pump-probe experiments.1 We highlight, via Particle-in-Cell simulations, a viable route to pulse isolation using two colour fields with off integer harmonic frequencies, which allows subtle shaping of the incident laser field which when reflected by the plasma mirror, diminishes some pulses in the train resulting in the potential to isolate a single attosecond pulse.
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Colm Fitzpatrick, Brendan Dromey, and Mark Yeung "Attosecond pulse generation using incommensurate two-colour fields", Proc. SPIE 12582, Compact Radiation Sources from EUV to Gamma-rays: Development and Applications, 1258205 (8 June 2023); https://doi.org/10.1117/12.2665621
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KEYWORDS
Laser frequency
Ultrafast phenomena
Plasma
Extreme ultraviolet
Simulations
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