Latest developments in attosecond science : from mid-IR to soft X-ray spectroscopy and molecular diffraction Imaging
Jens BIEGERT
(ICREA Professor of Attoscience and Ultrafast Optics - ICFO - The Institute of Photonics Sciences Mediterranean Technology Park, Castelldefels, Barcelona, Spain)>
Lundi 28 septembre 2015 – 14h Amphithéâtre SOLEIL
Electron recollision in an intense laser field is at the centre of attoscience research and gives rise to a variety of phenomena, ranging from electron diffraction to coherent soft X-ray emission. We have, over the years, developed intense sources of ultra-stable and waveform controlled mid-IR light to exploit ponderomotive scaling, quantum diffusion and quasi-static photo emission. I will briefly highlight the laser technology that enables this new direction of strong field research and our recent achievements in sub-Angstrom resolution imaging of an entire polyatomic molecule, the generation of isolated attosecond pulses at the carbon K-shell edge (284 eV) and application to soft X-ray absorption spectroscopy in condensed matter. In addition, direct mid-IR spectroscopy is used for imaging with micro to nano scale resolution.
