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The generation of fully coherent and femtosecond time-scale radiation pulses in the X-ray regime is one of the most common demands of ring-based synchrotron light source users. In this paper, a method that utilizes the recent proposed angular dispersion induced microbunching technique to convert external light from high-harmonic generation (HHG) to coherent light at shorter wavelength is proposed. Numerical simulations using the practical parameters of a diffraction-limited storage ring demonstrate the generation of coherent pulse trains with photon energy as high as 2 keV, pulse duration as short as ∼10 fs and high peak brightness directly from an HHG source at 13 nm.

Steady-state microbunching (SSMB) is a promising concept for generating high average power coherent radiation based on storage rings. To cover the shorter wavelength range, the bunched electron beam in conventional SSMB needs to be further compressed with advanced beam manipulation techniques. In this paper, several methods for enhancing the microbunching of SSMB have been discussed and compared. A new method termed dual-tilted-laser scheme (DTL) has been proposed. Numerical simulations with typical parameters of SSMB demonstrated that it has the potential of extending the wavelength coverage of SSMB to the EUV range based on DTL scheme with high repetition rate.

The generation of fully coherent and femtosecond time‐scale radiation pulses in the X‐ray regime is one of the most common demands of ring‐based synchrotron light source users. In this paper, a method that utilizes the recent proposed angular dispersion induced microbunching technique to convert external light from high‐harmonic generation (HHG) to coherent light at shorter wavelength is proposed. Numerical simulations using the practical parameters of a diffraction‐limited storage ring demonstrate the generation of coherent pulse trains with photon energy as high as 2 keV, pulse duration as short as ∼10 fs and high peak brightness directly from an HHG source at 13 nm. [ABSTRACT FROM AUTHOR]

Steady-state microbunching (SSMB) is a promising concept for generating high average power coherent radiation based on storage rings. To cover the shorter wavelength range, the bunched electron beam in conventional SSMB needs to be further compressed with advanced beam manipulation techniques. In this paper, several methods for enhancing the microbunching of SSMB have been discussed and compared. A new method termed dual-tilted-laser scheme (DTL) has been proposed. Numerical simulations with typical parameters of SSMB demonstrated that it has the potential of extending the wavelength coverage of SSMB to the EUV range based on DTL scheme with high repetition rate. [ABSTRACT FROM AUTHOR]