Reflective metalens with sub-diffraction-limited and multifunctional focusing
文献类型：期刊论文
| 作者 | Yang H; Li GH; Su XF; Cao GT; Zhao ZY; Chen XS; Lu W |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2017 |
| 卷号 | 7 |
| 关键词 | POLARITY PLASMONIC METALENS BAND ANOMALOUS REFLECTION BROAD-BAND DIELECTRIC METASURFACE PHASE DISCONTINUITIES VISIBLE WAVELENGTHS LIGHT-PROPAGATION FLAT LENSES FIELD SURFACES |
| DOI | 10.1038/s41598-017-13004-z |
| 英文摘要 | We propose an ultra-thin planar reflective metalens with sub-diffraction-limited and multifunctional focusing. Based on the equal optical path principle the specific phase distributions for multifunction focusing are derived. Following the formulas on-center focusing with the characteristics of sub-diffraction-limited high focusing efficiency (85%) and broadband focusing is investigated in detail. To demonstrate the flexibility of the reflective metalens off-center and dual spots focusing (at the horizontal and longitudinal directions) are demonstrated. Note that all these focusings are sub-diffraction-limited due to the evanescent-filed enhancement mechanism in our elaborately designed structure. The designed reflective metalens will find important applications in super-resolution imaging microscopes and spectroscopic designs. |
| 源URL | [http://202.127.2.71:8080/handle/181331/12261]  |
| 专题 | 上海技术物理研究所_上海技物所 |
| 作者单位 | Shanghai Inst Tech Phys |
| 推荐引用方式 GB/T 7714 | Yang H,Li GH,Su XF,et al. Reflective metalens with sub-diffraction-limited and multifunctional focusing[J]. SCIENTIFIC REPORTS,2017,7. |
| APA | Yang H.,Li GH.,Su XF.,Cao GT.,Zhao ZY.,...&Lu W.(2017).Reflective metalens with sub-diffraction-limited and multifunctional focusing.SCIENTIFIC REPORTS,7. |
| MLA | Yang H,et al."Reflective metalens with sub-diffraction-limited and multifunctional focusing".SCIENTIFIC REPORTS 7(2017). |
入库方式： OAI收割
来源：上海技术物理研究所
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