Abstract

Wavelength dependence of harmonic yield of H2+ and T2+ is studied. Generally, the wavelength dependence of harmonic yield of T2+ is slower than that of H2+ in shorter wavelength region. As wavelength increases, a faster harmonic scaling of T2+ can be obtained in longer wavelength region. At lower laser intensity, the harmonic yield of T2+ is always lower than that of H2+. At higher laser intensity, the harmonic yield of T2+ is firstly stronger and then lower than that of H2+ in shorter and longer wavelength regions, respectively. Nuclear signal plays an important role in intensity change of harmonic yield.

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