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Book Chapter

Frontiers of Atomic High-Harmonic Generation

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons30696

Kohler,  Markus Christopher
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30892

Pfeifer,  Thomas
Thomas Pfeifer - Independent Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30572

Hatsagortsyan,  Karen Zaven
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons30659

Keitel,  Christoph H.
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

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Citation

Kohler, M. C., Pfeifer, T., Hatsagortsyan, K. Z., & Keitel, C. H. (2012). Frontiers of Atomic High-Harmonic Generation. In Advances in Atomic, Molecular, and Optical Physics (pp. 159-208). Amsterdam [u.a.]: Elsevier.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0010-0C8C-B
Abstract
In the past two decades high-harmonic generation (HHG) has become a key process in ultrafast science due to the extremely short time structure of the underlying electron dynamics being imprinted in the emitted harmonic light bursts. After discussing the fundamental physical picture of HHG including continuum–continuum transitions, we describe the experimental progress rendering HHG a unique source of attosecond pulses. The development of bright photon sources with zeptosecond pulse duration and keV photon energy is underway. In this chapter, we describe several approaches directed toward this aim and beyond. As the main barriers for multi-keV HHG, phase-matching and relativistic drift are discussed. Routes to overcome these problems are pointed out as well as schemes to control the HHG process via alterations of the driving fields. Finally, we report on how the investigation of fundamental physical processes benefits from the continuous development of HHG sources.