Influence of a half-wave plate–polarizer attenuator on broadband femtosecond laser pulses

Adaptive-feedback spectral-phase control for interactions with transform-limited ultrashort high-power laser pulses

“…The loss in beam energy for the four TFPs was measured to be less than 5%, which can be neglected for a laser system with an output of 5 J per pulse. A broad and deep hole in the spectrum appeared when the HWP was set to minimize the transmission energy (zero position) because of the limited extinction ratio of the HWP and TFPs within the entire spectral range [14]. The HWP was then set to 5°from the zero position to keep the same spectral shape as that at full-power.…”

Bessel spatial profile of a soft x-ray laser beam

“…Within this range of wave-plate angles ͑30°͒, no spectral modulations or any other effect on the pulse shape has been observed. 7 The results of these measurements are presented in Fig. 1.…”