Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aal2241 |
Large, valley-exclusive Bloch-Siegert shift in monolayer WS2 | |
Sie, Edbert J.1; Lui, Chun Hung2; Lee, Yi-Hsien3; Fu, Liang1; Kong, Jing4; Gedik, Nuh1 | |
2017-03-10 | |
发表期刊 | SCIENCE
![]() |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 355期号:6329 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Taiwan |
英文摘要 | Coherent interaction with off-resonance light can be used to shift the energy levels of atoms, molecules, and solids. The dominant effect is the optical Stark shift, but there is an additional contribution from the so-called Bloch-Siegert shift that has eluded direct and exclusive observation in solids. We observed an exceptionally large Bloch-Siegert shift in monolayer tungsten disulfide (WS2) under infrared optical driving. By controlling the light helicity, we could confine the Bloch-Siegert shift to occur only at one valley, and the optical Stark shift at the other valley, because the two effects obey opposite selection rules at different valleys. Such a large and valley-exclusive Bloch-Siegert shift allows for enhanced control over the valleytronic properties of two-dimensional materials. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396348900042 |
WOS关键词 | MOS2 ; VALLEYTRONICS ; POLARIZATION ; FIELDS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/195575 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.MIT, Dept Phys, Cambridge, MA 02139 USA; 2.Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 USA; 3.Natl Tsing Hua Univ, Mat Sci & Engn, Hsinchu 30013, Taiwan; 4.MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA |
推荐引用方式 GB/T 7714 | Sie, Edbert J.,Lui, Chun Hung,Lee, Yi-Hsien,et al. Large, valley-exclusive Bloch-Siegert shift in monolayer WS2[J]. SCIENCE,2017,355(6329). |
APA | Sie, Edbert J.,Lui, Chun Hung,Lee, Yi-Hsien,Fu, Liang,Kong, Jing,&Gedik, Nuh.(2017).Large, valley-exclusive Bloch-Siegert shift in monolayer WS2.SCIENCE,355(6329). |
MLA | Sie, Edbert J.,et al."Large, valley-exclusive Bloch-Siegert shift in monolayer WS2".SCIENCE 355.6329(2017). |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论