Basic Concepts and Current Status of the Petawatt Field Synthesizer－A New Approach to Ultrahigh Field Generation

Generation of Attosecond Light Pulses from Gas and Solid State Media

“…Despite the fact that the experimental results were obtained predominantly with multi-cycle laser pulses, the agreement to the simulations is worth noticing. This gives rise to cautious optimism, that in the near future, with the new generation laser systems [5,6,27], we will be able to reach the unprecedented efficiencies predicted by the PIC simulations. More recently, a number of reports have provided very important additional insight in the theoretical aspects of the model and additional predictions have been derived [21,[130][131][132].…”

“…Impressive technological achievements in the fs laser pulse engineering have led to the development of table-top Ti:sapphire laser systems which nowadays can deliver high power laser pulses with duration down to~5 fs [1][2][3][4][5][6]. The high intensities achievable with these pulses have enabled the observation of many fascinating non-linear processes occurring in all states of matter.…”

“…Due to the experimental obstacles mentioned before, the solid surface harmonics as a robust asec source (that can be utilized for further experiments) is still in the development phase and applicability up to now is mainly dedicated to the studies of the ultrafast dynamics of laser-plasma interaction [82][83][84][85][86]. Nevertheless, recent experiments performed in the non-linear XUV regime [54,92] and recent progress in the laser pulse engineering and solid target technology [5,6,[35][36][37]67] verifies the feasibility of using solid surface harmonics in ultrafast XUV spectroscopy and attosecond science.…”

Contrast Improvement of Relativistic Few-Cycle Light Pulses

“…Outside of this window the undesired background like ASE, OPF or prepulses is not amplified and so the contrast gets better outside by a factor of the parametric gain. Presently OPCPA with short pump pulses -in the ps range-is mainly used for the generation of few-cycle pulses Herrmann et al (2009);Gu et al (2009);Major et al (2009), that are unachievable with other methods. The good contrast is a extra benefit from OPCPA and can be well utilized only in ultra-high intensity few-cycle systems.…”

Applications of Tilted-Pulse-Front Excitation

“…Due to the long pulse durations, pulse front matching is usually not a practical issue. Recently, the use of short (few-ps to sub-ps) pump pulses was proposed for generation of high-power few-cycle pulses (Fülöp et al, 2007, Major et al, 2009). In such a high-energy short-pulse-pumped NOPA pulse front matching between signal and pump is crucial to enable amplification with large beam sizes.…”