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Carrier-envelope-phase stable, high-contrast, double chirped-pulse-amplification laser system
Optics Letters
|July 1, 2014
Summary
We developed a stable chirped-pulse amplifier (CPA) for high-intensity laser experiments. This system achieves high temporal contrast, crucial for precise laser-plasma interactions at a 1 kHz repetition rate.
Area of Science:
- Laser Physics
- Plasma Physics
- High-Intensity Optics
Background:
- Relativistic laser-plasma interactions require high temporal contrast laser pulses.
- Achieving carrier-envelope-phase (CEP) stability in high-energy, high-repetition-rate systems is challenging.
Purpose of the Study:
- To demonstrate the first carrier-envelope-phase stable chirped-pulse amplifier (CPA) for relativistic intensity laser-plasma interactions.
- To achieve high temporal contrast at a 1 kHz repetition rate.
Main Methods:
- Utilized a double-CPA architecture.
- Incorporated a cross-polarized wave (XPW) filtering technique for enhanced temporal contrast.
- Employed a high-energy grism-based compressor for pulse compression.
Main Results:
- Generated 8 mJ, 22 fs laser pulses.
- Achieved a temporal contrast of 10⁻¹¹ at -20 ps.
- Measured a carrier-envelope-phase drift of 240 mrad root mean square.
Conclusions:
- The developed CPA system provides unprecedented stability and contrast for high-intensity laser-plasma research.
- This advancement enables more controlled and precise investigations into laser-matter interactions at relativistic intensities.
