研究目的
Investigating the generation of intense circularly polarized attosecond pulses from solid targets irradiated with a two-color linearly polarized laser for applications in detecting the magnetic and chiral properties of materials.
研究成果
The proposed method efficiently generates intense circularly polarized attosecond pulses using a two-color linearly polarized laser, offering a promising tool for investigating material properties with high spatial and temporal resolution.
研究不足
The scheme requires precise control over the laser parameters and target conditions. The applicability at lower intensities and the practical challenges of generating and controlling two-color lasers at relativistic intensities are potential limitations.
1：Experimental Design and Method Selection:
The study proposes using a two-color linearly polarized laser to obliquely irradiate a solid target, generating circularly polarized attosecond pulses via the relativistically oscillating mirror mechanism.
2：Sample Selection and Data Sources:
A solid target with a preplasma is used, with electron density ne0 = 195nc and a preplasma scale length ls =
3：1λ. List of Experimental Equipment and Materials:
The setup involves a two-color S-polarized laser with specific intensities in the fundamental and second harmonics.
4：Experimental Procedures and Operational Workflow:
The laser irradiates the target at an incident angle, and the generated attosecond pulses are analyzed for their properties.
5：Data Analysis Methods:
Particle-in-cell simulations are used to verify the theoretical expectations and analyze the harmonic spectra and pulse properties.
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