Improvement in the temporal contrast in the tens of ps range of the multi-PW Apollon laser front-end
- Resource Type
- Authors
- F. Mathieu; Christophe Radier; Sandrine Ricaud; Lucas Ranc; Luc Martin; Dimitris N. Papadopoulos; Ji-Ping Zou; Catherine Blanc; Nathalie Lebas; Frédéric Druon
- Source
- Optics Letters
Optics Letters, 2020, 45 (16), pp.4599. ⟨10.1364/OL.401272⟩
Optics Letters, Optical Society of America-OSA Publishing, 2020, 45 (16), pp.4599. ⟨10.1364/OL.401272⟩
- Subject
- Chirped pulse amplification
Orders of magnitude (power)
[PHYS]Physics [physics]
Range (particle radiation)
Materials science
business.industry
Spectral density
02 engineering and technology
Surface finish
021001 nanoscience & nanotechnology
Laser
01 natural sciences
Atomic and Molecular Physics, and Optics
law.invention
010309 optics
Front and back ends
Optics
law
0103 physical sciences
[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic
Contrast ratio
0210 nano-technology
business
ComputingMilieux_MISCELLANEOUS
- Language
- ISSN
- 1539-4794
0146-9592
We demonstrate the impact of the optics roughness in Öffner stretchers used in chirped pulse amplification laser chains and how it is possible to improve the temporal contrast ratio in the temporal range of 10–100 ps by adequately choosing the optical quality of the key components. Experimental demonstration has been realized in the front-end source of the multi-petawatt (PW) laser facility Apollon, resulting in an enhancement of the contrast ratio by two to three orders of magnitude.