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DOI | 10.1126/science.aax2357 |
Spatiotemporal light control with frequency-gradient metasurfaces | |
Shaltout, Amr M.1; Lagoudakis, Konstantinos G.2,3; van de Groep, Jorik1; Kim, Soo Jin1,4; Vuckovic, Jelena2; Shalaev, Vladimir M.5,6; Brongersma, Mark L.1 | |
2019-07-26 | |
发表期刊 | SCIENCE |
ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 365期号:6451页码:374-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Scotland; South Korea |
英文摘要 | The capability of on-chip wavefront modulation has the potential to revolutionize many optical device technologies. However, the realization of power-efficient phase-gradient metasurfaces that offer full-phase modulation (0 to 2 pi) and high operation speeds remains elusive. We present an approach to continuously steer light that is based on creating a virtual frequency-gradient metasurface by combining a passive metasurface with an advanced frequency-comb source. Spatiotemporal redirection of light naturally occurs as optical phase-fronts reorient at a speed controlled by the frequency gradient across the virtual metasurface. An experimental realization of laser beam steering with a continuously changing steering angle is demonstrated with a single metasurface over an angle of 25 degrees in just 8 picoseconds. This work can support integrated-on-chip solutions for spatiotemporal optical control, directly affecting emerging applications such as solid-state light detection and ranging (LIDAR), three-dimensional imaging, and augmented or virtual systems. |
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:000477703100039 |
WOS关键词 | PANCHARATNAM-BERRY PHASE ; BROAD-BAND ; META-ATOMS ; REFLECTION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/201942 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Stanford Univ, Geballe Lab Adv Mat, Stanford, CA 94305 USA; 2.Stanford Univ, Ginzton Lab, Stanford, CA 94305 USA; 3.Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland; 4.Korea Univ, Sch Elect Engn, Seoul 02841, South Korea; 5.Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA; 6.Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA |
推荐引用方式 GB/T 7714 | Shaltout, Amr M.,Lagoudakis, Konstantinos G.,van de Groep, Jorik,et al. Spatiotemporal light control with frequency-gradient metasurfaces[J]. SCIENCE,2019,365(6451):374-+. |
APA | Shaltout, Amr M..,Lagoudakis, Konstantinos G..,van de Groep, Jorik.,Kim, Soo Jin.,Vuckovic, Jelena.,...&Brongersma, Mark L..(2019).Spatiotemporal light control with frequency-gradient metasurfaces.SCIENCE,365(6451),374-+. |
MLA | Shaltout, Amr M.,et al."Spatiotemporal light control with frequency-gradient metasurfaces".SCIENCE 365.6451(2019):374-+. |
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