Polarization-independent metalens constructed of antennas without rotational invariance
文献类型：期刊论文
| 作者 | Yang H; Li GH; Cao GT; Zhao ZY; Yu FL; Chen XS; Lu W |
| 刊名 | OPTICS LETTERS
 |
| 出版日期 | 2017 |
| 卷号 | 42期号:16页码:3836-3839 |
| 关键词 | BROAD-BAND DIELECTRIC METASURFACES VISIBLE WAVELENGTHS LIGHT OPTICS LENSES MODE |
| DOI | 10.1364/OL.42.003996 |
| 英文摘要 | We propose a novel approach to designing an ultrathin polarization-independent metalens (PIM) by utilizing antennas without rotational invariance. Two arrays of nanoblocks are elaborately designed to form the super cell of the PIM which are capable of focusing right-handed circularly polarized and left-handed circularly polarized lights. With such a strategy the PIM is able to achieve polarization-independent focusing since the light with any polarization can be treated as a combination of the two orthogonal ones. A theoretical analysis based on the Jones vector is proposed to detailedly explore the underlying physics. The polarization-independent characteristic of the designed PIM is also demonstrated by utilizing finite difference time domain simulations. Moreover polarization-independent focusing can be achieved within a wavelength range of 400 nm. These results can deepen our understanding of polarization-independent focusing and provide a new method for designing ultrathin polarization-independent devices. (C) 2017 Optical Society of America |
| 源URL | [http://202.127.2.71:8080/handle/181331/12264]  |
| 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,Cao GT,et al. Polarization-independent metalens constructed of antennas without rotational invariance[J]. OPTICS LETTERS,2017,42(16):3836-3839. |
| APA | Yang H.,Li GH.,Cao GT.,Zhao ZY.,Yu FL.,...&Lu W.(2017).Polarization-independent metalens constructed of antennas without rotational invariance.OPTICS LETTERS,42(16),3836-3839. |
| MLA | Yang H,et al."Polarization-independent metalens constructed of antennas without rotational invariance".OPTICS LETTERS 42.16(2017):3836-3839. |
入库方式： OAI收割
来源：上海技术物理研究所
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