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Colloquium : Optimal control of high-harmonic generation
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TLDR
In this paper, the authors discuss the control of high-harmonic spectra by temporal and spatial pulse shaping of the driving laser pulses and its implications on time-resolved XUV spectroscopy and attosecond pulse shaping.Abstract:
High-harmonic generation provides an attractive light source of coherent radiation in the extreme-ultraviolet (XUV) and soft-x-ray regions of the spectrum and allows for the production of single attosecond pulses or pulse trains. This Colloquium covers the control of high-harmonic spectra by temporal and spatial pulse shaping of the driving laser pulses and its implications on time-resolved XUV spectroscopy and attosecond pulse shaping. It summarizes important steps for extending existing pulse shaping techniques and control schemes from the near-infrared or visible part to shorter wavelengths. Using adaptive pulse shaping of the driving laser pulses, several groups have demonstrated control of the high-harmonic spectrum, including the author's work on the complete control over the XUV spectrum of high-order harmonics, generated in a gas-filled hollow fiber. It is possible to achieve both the enhancement and the suppression of single or several selected harmonic orders. These arbitrarily shaped soft-x-ray spectra will allow for important modifications of the resulting harmonic pulses in the temporal domain. This constitutes first steps towards direct attosecond pulse shaping in the soft-x-ray domain. Moreover, high-harmonic generation in a hollow-core fiber can be enhanced by coupling into a single fiber mode using a feedback-controlled adaptive two-dimensional spatial light modulator.read more
Citations
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Extremely high-intensity laser interactions with fundamental quantum systems
TL;DR: In this article, a review of recent investigations on high-energy processes within the realm of relativistic quantum dynamics, quantum electrodynamics, and nuclear and particle physics, occurring in extremely intense laser fields is presented.
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Electron and X‐Ray Methods of Ultrafast Structural Dynamics: Advances and Applications
Majed Chergui,Ahmed H. Zewail +1 more
TL;DR: The state of the art in the determination of structures with ultrafast electrons and X-rays is highlighted, and a comprehensive referencing to current research is provided.
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A newcomer's guide to ultrashort pulse shaping and characterization
TL;DR: An overview of the most widespread techniques of both ultrashort pulse shaping and pulse characterization can be found in this paper, where the authors also present a detailed survey of the techniques used for both tasks.
References
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TL;DR: Schawlow and Townes as discussed by the authors proposed a technique for the generation of very monochromatic radiation in the infra-red optical region of the spectrum using an alkali vapour as the active medium.
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Stimulated optical radiation in ruby
TL;DR: Schawlow and Townes as discussed by the authors proposed a technique for the generation of very monochromatic radiation in the infra-red optical region of the spectrum using an alkali vapour as the active medium.
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Interactions between light waves in a nonlinear dielectric
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