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题名:
Principles of electromagnetic waves in metasurfaces
作者: Luo XianGang
刊名: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
出版日期: 2015-09-01
卷号: 58, 期号:9
关键词: metasurface ; subwavelength structure ; diffraction limit ; flat lens ; perfect absorption
DOI: 10.1007/s11433-015-5688-1
文章类型: Article
英文摘要: Metasurfaces are artificially structured thin films with unusual properties on demand. Different from metamaterials, the metasurfaces change the electromagnetic waves mainly by exploiting the boundary conditions, rather than the constitutive parameters in three dimensional (3D) spaces. Despite the intrinsic similarities in the operational principles of metasurfaces, there is not a universal theory available for the understanding and design of these devices. In this article, we propose the concept of metasurface waves (M-waves) and provide a general theory to describe the principles of such waves. Most importantly, it is shown that the M-waves share some fundamental properties such as extremely short wavelength, abrupt phase change and strong chromatic dispersion, which making them different from traditional bulk waves. We show that these properties can enable many important applications such as subwavelength imaging and lithography, planar optical devices, broadband anti-reflection, absorption and polarization conversion. Our results demonstrated unambiguously that traditional laws of diffraction, refraction, reflection and absorption can be overcome by using the novel properties of M-waves. The theory provided here may pave the way for the design of new electromagnetic devices and further improvement of metasurfaces.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: APPROXIMATE BOUNDARY-CONDITIONS ; BROAD-BAND ; DIFFRACTION LIMIT ; INTERFERENCE NANOLITHOGRAPHY ; POLARIZATION CONVERSION ; TERAHERTZ METAMATERIAL ; PHASE DISCONTINUITIES ; NEGATIVE REFRACTION ; PERFECT ABSORPTION ; OPTICAL HYPERLENS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000360834200003
ISSN号: 1674-7348
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3703
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Nanofabricat & Microeng, Chengdu 610209, Peoples R China

Recommended Citation:
Luo XianGang. Principles of electromagnetic waves in metasurfaces[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2015,58(9).
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