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Updated: Jan 29, 2026
08:39
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
Published on: January 28, 2019
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Stable interferometric platform for phase modulation of seeded free-electron lasers.
Optics Letters
|February 16, 2019
Summary
We developed a compact phase modulation setup for high laser intensities, enabling advanced nonlinear processes like harmonic generation. This breakthrough supports novel extreme-ultraviolet coherent nonlinear spectroscopy applications.
Area of Science:
- Optics and Photonics
- Quantum Electronics
- Spectroscopy
Background:
- High laser intensities are crucial for driving nonlinear optical processes.
- Seeded free-electron lasers (FELs) require precise control for applications like harmonic generation.
- Extreme-ultraviolet (XUV) coherent nonlinear spectroscopy demands advanced phase modulation capabilities.
Purpose of the Study:
- To present a compact phase modulation setup capable of handling high laser intensities.
- To enable highly nonlinear processes, including high-gain harmonic generation in seeded FELs.
- To facilitate the development of all-extreme-ultraviolet coherent nonlinear spectroscopy.
Main Methods:
- Development of a compact phase modulation system.
- Utilizing high laser intensities to drive nonlinear processes.
- Probing quantum interference of electronic wave packets using 268 nm deep ultraviolet light.
- Employing photoion time-of-flight mass spectrometry for detection.
Main Results:
- Demonstration of a compact phase modulation setup for high laser intensities.
- Successful driving of highly nonlinear processes.
- High linearity, phase stability, and sensitivity of the setup confirmed.
- Quantum interference of electronic wave packets successfully probed.
Conclusions:
- The developed phase modulation setup is suitable for high-intensity applications.
- This technology advances the feasibility of all-XUV coherent nonlinear spectroscopy.
- The setup's performance is validated through quantum interference measurements.
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