外文题目: Effect of elliptical polarization of driving field on high-order-harmonic generation in semiconductor ZnO
作者: Liu, Candong; Zheng, Yinghui; Zeng, Zhinan; Li, Ruxin
刊名: Phys. Rev. A
年: 2016 卷: 93 期: 4 文章编号：43806
英文关键词:

ATTOSECOND PULSES; MOLECULES; DYNAMICS; SOLIDS
英文摘要:
High-order-harmonic generation in ZnO crystal exposed to the elliptically polarized midinfrared light is theoretically investigated upon scanning the ellipticity. We find the normalized yield of each harmonics in the plateau decreases in a form that can be well fitted to Gaussian dependence as increasing the ellipticity of driving pulse. We demonstrate primarily that the sensitivity for the ellipticity dependence of the interband harmonics above the band gap is determined by both the harmonic order and the intensity of driving light, which is interpreted in terms of the semiclassical saddle-point analysis. The effect of more laser pulse parameters on the ellipticity dependence is also investigated. Furthermore, it is shown that the ellipticity dependence of each harmonics is strongly affected by the variation of the energy band in the global and the local way. This shows that high-order-harmonic generation by an elliptically polarized driving field carries the significant signature of the band structure in solids.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1103/PhysRevA.93.043806


全文传递服务