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DOI	10.1016/j.scib.2020.02.026
	Manipulation of surface phonon polaritons in SiC nanorods
	Li Y.; Qi R.; Shi R.; Li N.; Gao P.
发表日期	2020
ISSN	20959273
起始页码	820
结束页码	826
卷号	65 期号:10
英文摘要	Surface phonon polaritons (SPhPs) are potentially very attractive for subwavelength control and manipulation of light at the infrared to terahertz wavelengths. Probing their propagation behavior in nanostructures is crucial to guide rational device design. Here, aided by monochromatic scanning transmission electron microscopy-electron energy loss spectroscopy technique, we measure the dispersion relation of SPhPs in individual SiC nanorods and reveal the effects of size and shape. We find that the SPhPs can be modulated by the geometric shape and size of SiC nanorods. The energy of SPhPs shows red-shift with decreasing radius and the surface optical phonon is mainly concentrated on the surface with large radius. Therefore, the fields can be precisely confined in specific positions by varying the size of the nanorod, allowing effective tuning at nanometer scale. The findings of this work are in agreement with dielectric response theory and numerical simulation, and provide novel strategies for manipulating light in polar dielectrics through shape and size control, enabling the design of novel nanoscale phonon-photonic devices. © 2020 Science China Press
关键词	Geometry manipulation Nanophotonics Nanostructure Phononic materials Surface phonon polariton
英文关键词	Dielectric materials; Electron energy levels; Electron energy loss spectroscopy; Electron scattering; Energy dissipation; High resolution transmission electron microscopy; Mechanical variables measurement; Nanophotonics; Nanorods; Nanostructures; Phonons; Photonic devices; Photons; Red Shift; Scanning electron microscopy; Silicon; Silicon carbide; Silicon compounds; Spontaneous emission; Dielectric response theory; Dispersion relations; Geometry manipulation; Polar dielectrics; Propagation behavior; Scanning transmission electron microscopy; Surface optical phonons; Surface phonon-polaritons; Sulfur compounds
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207112
作者单位	International Center for Quantum Materials, Peking University, Beijing, 100871, China; Electron Microscopy Laboratory, School of Physics, Peking University, Beijing, 100871, China; Collaborative Innovation Center of Quantum Matter, Beijing, 100871, China
推荐引用方式 GB/T 7714	Li Y.,Qi R.,Shi R.,et al. Manipulation of surface phonon polaritons in SiC nanorods[J],2020,65(10).
APA	Li Y.,Qi R.,Shi R.,Li N.,&Gao P..(2020).Manipulation of surface phonon polaritons in SiC nanorods.Science Bulletin,65(10).
MLA	Li Y.,et al."Manipulation of surface phonon polaritons in SiC nanorods".Science Bulletin 65.10(2020).