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Published on: February 4, 2017
In Silico Single-Shot Vacuum-Ultraviolet Pulse Reconstruction Via Solid-State High-Harmonic Generation
Jiaqi Zhang1,2, Yijin Han3, Chun-Ning Liu2
1Institute of Atomic and Molecular Physics, Jilin University, Changchun, Jilin 130012, China.
The Journal of Physical Chemistry Letters
|May 28, 2026
Summary
Researchers developed a new method for measuring vacuum-ultraviolet (VUV) waveforms using solid-state high-harmonic generation (HHG). This technique enables precise attosecond metrology by encoding VUV field information into emitted harmonic spectra.
Area of Science:
- Attosecond science
- Quantum optics
- Solid-state physics
Background:
- Attosecond VUV pulses control electronic dynamics but are hard to characterize.
- Challenges include absorption, limited nonlinear media, and instability.
Purpose of the Study:
- To develop a robust, all-optical, single-shot method for phase-resolved VUV waveform characterization.
- To overcome limitations of existing VUV metrology techniques.
Main Methods:
- Utilized solid-state high-harmonic generation (HHG) in semiconductors.
- Exploited laser-driven interband coherence to encode VUV field information.
- Combined simulations (SBE/TDSE) with data-driven reconstruction for waveform retrieval.
Main Results:
- Demonstrated accurate, in silico retrieval of complex VUV waveforms.
- Achieved single-shot measurement without delay scanning or averaging.
- Showcased enhanced phase sensitivity due to strong VUV absorption.
Conclusions:
- Solid-state HHG is a robust, phase-sensitive probe for VUV fields.
- This method offers a practical approach to attosecond VUV metrology.
- Overcomes key challenges in VUV waveform characterization.
