Dependence of high-order-harmonic generation on dipole moment in SiO2 crystals
文献类型：期刊论文
| 作者 | Yu, Chao2; Zhang, Xirui2; Jiang, Shicheng2; Cao, Xu2; Yuan, Guanglu2; Wu, Tong2; Bai, Lihua3; Lu, Ruifeng1,2 |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2016-07-26 |
| 卷号 | 94期号:1 |
| ISSN号 | 2469-9926 |
| DOI | 10.1103/PhysRevA.94.013846 |
| 文献子类 | Article |
| 英文摘要 | High-order-harmonic generation in alpha-quartz SiO2 is theoretically investigated under a strong laser field by solving the extended semiconductor Bloch equations. The accurate band structures as well as dipole moments between different bands are obtained from state-of-the-art first-principles calculations. We find that the shapes of k-space-dependent dipole moments play an important role in harmonic generation. The calculated results show that harmonic conversion efficiency is significantly enhanced and the cutoff energy is distinctly increased when the dipole moments change greatly along a valley in the k direction in the solid. Based on that dependence on the dipole moment, we also show that symmetry groups greatly affect the harmonic spectra from the solid materials. Moreover, a two-color synthesized field is used to achieve a supercontinuum harmonic spectrum near the cutoff region, and isolated attosecond pulses can be obtained directly by filtering out the harmonic radiation. We hope the contribution presented in this work provides a useful reference for future studies on laser-crystal interactions. |
| WOS关键词 | TOTAL-ENERGY CALCULATIONS ; WAVE BASIS-SET ; ATTOSECOND PULSES ; NONLINEAR OPTICS ; ALPHA-QUARTZ ; SOLIDS |
| WOS研究方向 | Optics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000381473900007 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170314]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Lu, Ruifeng |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 2.Nanjing Univ Sci & Technol, Dept Appl Phys, Nanjing 210094, Jiangsu, Peoples R China 3.Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Chao,Zhang, Xirui,Jiang, Shicheng,et al. Dependence of high-order-harmonic generation on dipole moment in SiO2 crystals[J]. PHYSICAL REVIEW A,2016,94(1). |
| APA | Yu, Chao.,Zhang, Xirui.,Jiang, Shicheng.,Cao, Xu.,Yuan, Guanglu.,...&Lu, Ruifeng.(2016).Dependence of high-order-harmonic generation on dipole moment in SiO2 crystals.PHYSICAL REVIEW A,94(1). |
| MLA | Yu, Chao,et al."Dependence of high-order-harmonic generation on dipole moment in SiO2 crystals".PHYSICAL REVIEW A 94.1(2016). |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。