Role of Bloch oscillation in high-order harmonic generation from periodic structure<xref rid="cpb_28_11_114205fn1" ref-type="fn">*</xref><fn id="cpb_28_11_114205fn1"><label>*</label><p>Project supported by the NSAF, China (Grant No. U1730449) and the National Natural Science Foundation of China (Grant Nos. 11904341, 11774322, 91850201, and 11874066).</p></fn>

Role of Bloch oscillation in high-order harmonic generation from periodic structure**

Project supported by the NSAF, China (Grant No. U1730449) and the National Natural Science Foundation of China (Grant Nos. 11904341, 11774322, 91850201, and 11874066).

Liu Lu¹, Zhao Jing², Yuan Jian-Min^{1, 2}, Zhao Zeng-Xiu^{2, †}

(a) The highest VB and the lowest CB obtained from Schrödinger equation using the model potential. (b) High harmonic spectra obtained from SBEs (green line) including 2 bands, and TDSE (dashed blue line) including 18 bands. The laser field strength maximum is 0.003 a.u., and the wavelength equals 3200 nm. The vertical dashed lines denote the harmonic energy range corresponding to the minimum bandgap.