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Spectral interferometry with waveform-dependent relativistic high-order harmonics from plasma surfaces.
Dmitrii Kormin1,2, Antonin Borot1, Guangjin Ma3,4
1Max-Planck-Institut für Quantenoptik, Hans-Kopfermann Straße 1, 85748, Garching, Germany.
Nature Communications
|November 28, 2018
Summary
Researchers generated isolated attosecond pulses using plasma mirrors and intense laser pulses. Spectral interferometry revealed insights into the relativistic generation mechanism and plasma surface dynamics.
Area of Science:
- * Physics of extreme light-matter interactions.
- * Generation of ultrashort electromagnetic radiation.
- * Plasma physics and surface dynamics.
Background:
- * Attosecond pulses are crucial for probing ultrafast phenomena.
- * Plasma mirrors enhance attosecond sources at relativistic intensities.
- * Generating isolated attosecond pulses from plasma mirrors remains a challenge.
Purpose of the Study:
- * To demonstrate laser-waveform-dependent high-order harmonic generation.
- * To produce well-isolated attosecond pulses in the extreme ultraviolet.
- * To elucidate the relativistic generation mechanism using spectral interferometry.
Main Methods:
- * Interaction of ultra-intense laser pulses with ionized solid surfaces (plasma mirrors).
- * Generation of high-order harmonic radiation in the extreme ultraviolet (XUV) spectrum.
- * Application of spectral interferometry for analyzing the generated pulses.
Main Results:
- * Observation of laser-waveform-dependent high-order harmonic radiation.
- * Successful generation of well-isolated attosecond pulses in the XUV range.
- * Detailed spectral phase analysis revealing plasma surface motion.
Conclusions:
- * The study demonstrates a viable method for generating isolated attosecond pulses from plasma mirrors.
- * Spectral interferometry provides unprecedented insight into the relativistic generation dynamics.
- * Findings pave the way for enhanced attosecond sources with improved control over temporal and spatial properties.
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