研究目的
Investigating the amplification of attosecond pulses in the active medium of a plasma-based x-ray laser dressed by an infrared laser field to overcome the limitation of small energy in attosecond pulses, especially for photon energies exceeding 100 eV.
研究成果
The study demonstrates the possibility of amplifying attosecond pulses in a plasma-based x-ray laser medium dressed by an infrared laser field. This method allows for the amplification of attosecond pulses with durations down to 100 as at the carrier wavelength 3.4 nm in the 'water window' range, offering a significant advancement in the field of attosecond physics.
研究不足
The energy of attosecond pulses remains quite small, especially for photon energies exceeding 100 eV, which limits their practical applications. The amplification process is sensitive to the parameters of the active medium and the modulating field, requiring precise control for optimal performance.
1：Experimental Design and Method Selection:
The study proposes a method for amplifying attosecond pulses in a plasma-based x-ray laser medium dressed by an infrared laser field. The theoretical model involves the interaction of high-harmonic generation (HHG) with the active medium of a hydrogenlike C5t x-ray laser.
2：Sample Selection and Data Sources:
The active medium consists of neutral plasma with C5t ions, electrons, and other ions to maintain electric neutrality, with specific densities for C5t ions and electrons.
3：List of Experimental Equipment and Materials:
A 2.1 μm laser is used for both HHG and modulation of the active medium. The plasma channel has a length of 1 mm and a radius of 1 μm.
4：1 μm laser is used for both HHG and modulation of the active medium. The plasma channel has a length of 1 mm and a radius of 1 μm.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The incident x-ray field, comprising a set of harmonics, is amplified in the active medium dressed by the IR field. The amplification process is analyzed using a complete set of density matrix equations for a five-level system.
5：Data Analysis Methods:
The study includes analytical solutions for the amplified x-ray field and numerical calculations to understand the amplification process and its effects on the attosecond pulse train.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
