Probing the structure of multi-center molecules with odd

Probing the structure of multi-center molecules with odd–even high harmonics

Su Ning¹, Yu Shujuan^{1, 2, †}, Li Weiyan^{3, ‡}, Yang Shiping², Chen Yanjun^{1, §}

(color online) Comparisons of odd HHG spectra of Eqs. 1(a) and 1(b) and dipoles of Eqs. 2(c) and 2(d) for 2D linear model molecules with the same ionization potential of a.u. but diverse internuclear distances of X = 2 a.u. (solid black curves), X = 1.9 a.u. (dash-dotted red curves), and X = 1.7 a.u. (dotted blue curves) at θ = 30° (the left column) and θ = 40° (right). The laser parameters used are and λ = 600 nm.