Ultrafast solid-state oscillators and high-power amplifiers based on broadband, multisite Yb-doped crystals

We present our comparative investigations on several different multisite Yb-doped materials suitable to be employed as active media both in ultrafast solid-state oscillators and power amplifiers, such as Yb:CALGO, Yb:CALYO, Yb:SSO, Yb:CaF2, Yb:KLuW

Sub-100-fs mode-locking of the Cr:YAG laser using monolayer graphene saturable absorber

We report on mode-locking of a Cr:YAG laser at 1516 nm with a monolayer-graphene-based saturable absorber of transmission type generating ~90-fs pulses at an average output power exceeding 100 mW

Sub-100-fs Cr:YAG laser mode-locked by monolayer graphene saturable absorber

We report on mode-locking of a Cr:YAG laser at 1516 nm using a monolayer graphene-based saturable absorber of transmission type generating 91 fs pulses with a Fourier product of 0.38 at an average output power exceeding 100 mW. Stable single-pulse mode-locked operation without any sign of Q-switching instabilities or multiple pulses is achieved

Sub-50-fs mode-locking of the Cr:YAG laser using SWCNT-SA

Bandwidth-limited pulses of sub-50 fs duration at 1506 nm are generated by a Cr:YAG laser mode-locked with a single-walled carbon nanotube saturable absorber. A Stokes shifted sideband at 1626 nm is observed for the broadest oscillation spectra

Shock compression experiments using the DiPOLE 100-X laser on the high energy density instrument at the European x-ray free electron laser: Quantitative structural analysis of liquid Sn

X-ray free electron laser (XFEL) sources coupled to high-power laser systems offer an avenue to study the structural dynamics of materials at extreme pressures and temperatures. The recent commissioning of the DiPOLE 100-X laser on the high energy density (HED) instrument at the European XFEL represents the state-of-the-art in combining x-ray diffraction with laser compression, allowing for compressed materials to be probed in unprecedented detail. Here, we report quantitative structural measurements of molten Sn compressed to 85(5) GPa and ∼3500 K. The capabilities of the HED instrument enable liquid density measurements with an uncertainty of ∼1% at conditions which are extremely challenging to reach via static compression methods. We discuss best practices for conducting liquid diffraction dynamic compression experiments and the necessary intensity corrections which allow for accurate quantitative analysis. We also provide a polyimide ablation pressure vs input laser energy for the DiPOLE 100-X drive laser which will serve future users of the HED instrument

Shock compression experiments using the DiPOLE 100-X laser on the high energy density instrument at the European x-ray free electron laser: Quantitative structural analysis of liquid Sn

International audienceX-ray free electron laser (XFEL) sources coupled to high-power laser systems offer an avenue to study the structural dynamics of materials at extreme pressures and temperatures. The recent commissioning of the DiPOLE 100-X laser on the high energy density (HED) instrument at the European XFEL represents the state-of-the-art in combining x-ray diffraction with laser compression, allowing for compressed materials to be probed in unprecedented detail. Here, we report quantitative structural measurements of molten Sn compressed to 85(5) GPa and ∼3500 K. The capabilities of the HED instrument enable liquid density measurements with an uncertainty of ∼1% at conditions which are extremely challenging to reach via static compression methods. We discuss best practices for conducting liquid diffraction dynamic compression experiments and the necessary intensity corrections which allow for accurate quantitative analysis. We also provide a polyimide ablation pressure vs input laser energy for the DiPOLE 100-X drive laser which will serve future users of the HED instrument