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A multi-terawatt two-color beam for high-power field-controlled nonlinear optics
Optics Letters
|December 1, 2020
Summary
We generated a powerful two-color laser beam using a relativistic plasma mirror. This technology enables precise control over light-field interactions for advanced radiation generation.
Area of Science:
- Laser Physics
- Plasma Physics
- Nonlinear Optics
Background:
- Two-color laser beams are crucial for controlling and enhancing various light-matter interactions.
- Applications include generating high-order harmonic, spectral supercontinuum, and terahertz radiation.
Purpose of the Study:
- To demonstrate a high-power, two-color laser beam generation method.
- To investigate the spatial quality and focusing capabilities of the generated beams.
- To assess the potential of plasma mirrors for multi-color waveform synthesis.
Main Methods:
- Utilized a relativistic plasma mirror to generate a two-color laser beam.
- Employed high-intensity laser interactions with plasma.
- Characterized the spectral and spatial properties of the generated beams.
Main Results:
- Successfully produced a multi-terawatt two-color beam with 110 mJ at 800 nm and 30 mJ at 400 nm.
- Both spectral components exhibited high spatial quality.
- Demonstrated simultaneous focusing of both colors when the plasma mirror was within the fundamental beam's Rayleigh range.
Conclusions:
- Relativistic plasma mirrors are effective for generating high-quality, multi-terawatt two-color laser beams.
- This technique shows promise for advanced multi-color waveform synthesis.
- Plasma mirrors offer favorable scaling for second-harmonic generation at relativistic intensities.
