Picosecond Contrast Improvement for PW Class Lasers Based on Modified Stretcher Design
The picosecond contrast is an outmost parameter for multi-PW laser systems. The presence of tens of picosecond pedestal prior to the main pulse in multi-PW class laser system could lead to damage of the target as it can reach intensity on target higher than 10<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">14</sup>W/cm<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup>. It has been demonstrated that the convex mirror within the Offner stretcher of those laser systems is the main contributor to this pedestal [1]. To reduce this effect, ultralow roughness mirrors have been implemented in some laser systems [2].
Authors
- Bruno LeGarrec
- Alain Pellegrina
- E. Gaul (ORCID: https://orcid.org/0000-0002-4145-168X)
- S. Pasternak
- Alexandru Toma (ORCID: https://orcid.org/0009-0009-8740-2072)
- C. Derycke
- Dimitrios Papadopoulos (ORCID: https://orcid.org/0000-0003-2621-3015)
- Michel Charbonneau (ORCID: https://orcid.org/0000-0002-6684-6151)
- Saidbek Norbaev
- Olivier Chalus (ORCID: https://orcid.org/0000-0002-9552-1903)
- N. Lebas
- Fabrice Mathieu (ORCID: https://orcid.org/0000-0002-3359-7080)
- Ioan Dăncuş (ORCID: https://orcid.org/0000-0002-8628-3819)
- G. Cojocaru (ORCID: https://orcid.org/0000-0002-5877-2607)
- Sandrine Ricaud
- P. Audebert (ORCID: https://orcid.org/0000-0002-1330-3946)
- Salim Ferhat
Institutions
- Centre National de la Recherche Scientifique (FR)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Thales (Australia) (AU)
- Sorbonne Université (FR)
- Laboratoire pour l'Utilisation des Lasers Intenses (FR)
- Thales (France) (FR)
- Extreme Light Infrastructure - Nuclear Physics (RO)
- Marvell (Israel) (IL)
Publication Details
- Published
- 2025-06-23
- DOI
- https://doi.org/10.1109/cleo/europe-eqec65582.2025.11110753
- Citations
- 1
- Primary Topic
- Laser-Plasma Interactions and Diagnostics
- Type
- article
- Field-Weighted Citation Impact
- 0.00