Publications by authors named "L Daniault"
We report on the nonlinear temporal post-compression of 7 mJ sub-40 fs pulses from a commercial kHz Ti:sapphire laser down to a record 3.8 fs duration (sub-1.5 optical cycle) in a compact single-stage gas-filled multi-pass cell (MPC), with 60% overall compression efficiency.
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- Researchers have created an advanced laser-plasma interaction platform that allows for the high-frequency observation of various emitted particles and radiation.
- This platform can measure high-order harmonics, relativistic electrons, and low divergence proton beams simultaneously.
- It enables detailed studies of how different interaction conditions (like pulse duration and plasma density) influence the properties of these particles and radiation, helping to better understand the complex dynamics involved.
We report on the nonlinear temporal compression of mJ energy pulses from a Ti:Sa chirped pulse amplifier system in a multipass cell filled with argon. The pulses are compressed from 30 fs down to 5.3 fs, corresponding to two optical cycles.
View Article and Find Full Text PDFWe report on the use of a 61 beamlets coherent beam combination femtosecond fiber amplifiers as a digital laser source to generate high-power orbital angular momentum beams. Such an approach opens the path for higher-order non-symmetrical user-defined far field distributions.
View Article and Find Full Text PDFWe report on the coherent beam combining of 61 femtosecond fiber chirped-pulse amplifiers in a tiled-aperture configuration along with an interferometric phase measurement technique. Relying on coherent beam recombination in the far field, this technique appears suitable for the combination of a large number of fiber amplifiers. The 61 output beams are stacked in a hexagonal arrangement and collimated through a high fill factor hexagonal micro-lens array.
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