Towards direct nonlinear compression of long-pulse lasers to the femtosecond regimeGaspard Beaufort, Nayla Jimenez, Victor Hariton, Ayhan Tajalli, Ingmar Hartl and Marcus SeidelEPJ Web Conf., 307 (2024) 04038DOI: https://doi.org/10.1051/epjconf/202430704038