Theoretical and experimental studies of broadband phase-controlled attosecond mirrors

We present procedures to develop and characterise chirped multilayer mirrors for attosecond pulses. The design procedure involves a simulated annealing optimisation algorithm to obtain a multilayer structure with the desired performances. The characterisation step requires the use of well-calibrated...

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Bibliographic Details
Published in:Journal of modern optics 2014-01, Vol.61 (2), p.122-131
Main Authors: Diveki, Z., Bourassin-Bouchet, C., de Rossi, S., English, E., Meltchakov, E., Gobert, O., Guénot, D., Carré, B., Salières, P., Ruchon, T., Delmotte, F.
Format: Article
Language:English
Subjects:
Attosecond pulses
Broadband
Dispersions
Experiments
extreme ultraviolet optics
high-harmonic generation
Ion beams
multilayer mirrors
Multilayers
Optics
Optimization
Optimization algorithms
Physics
pulse compression
Simulated annealing
Synchrotrons
Temporal logic
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Summary:We present procedures to develop and characterise chirped multilayer mirrors for attosecond pulses. The design procedure involves a simulated annealing optimisation algorithm to obtain a multilayer structure with the desired performances. The characterisation step requires the use of well-calibrated attosecond and synchrotron beam lines, allowing one to measure the amplitude and phase response of the mirror. We illustrate these approaches with a set of mirrors designed to have zero or negative dispersion. The remarkable agreement between theoretical and experimental performances validates this overall process, and demonstrates the capability of such mirrors to control the temporal profile of attosecond pulses. These tools and techniques for developing attosecond chirped mirrors will facilitate the generalisation of such components on attosecond experiments.
ISSN:0950-0340
1362-3044
DOI:10.1080/09500340.2013.869016