Abstract

We theoretically investigate harmonic-selective enhancement by controlling the time-delayed two-color laser field. By properly controlling the delay times of the two pulses, selective enhancement of the harmonics with photon energies between 75 and 125 eV can be obtained, resulting in wavelength-tunable and bandwidth-controllable coherent extreme ultraviolet radiation. In addition, the other laser parameters’ effects on the harmonic-selective-enhancement have also been investigated.

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