Launching Phonon Polaritons by Natural Boron Nitride Wrinkles with Modifiable Dispersion by Dielectric Environments
文献类型：期刊论文
| 作者 | Duan, Jiahua3,4; Chen, Runkun3,4; Li, Jingcheng3,4; Jin, Kuijuan1,3,4; Sun, Zhigang2,5; Chen, Jianing1,3,4 |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2017-10-11 |
| 卷号 | 29期号:38 |
| 关键词 | dielectric environments dispersion hexagonal boron nitride hyperbolic phonon polaritons wrinkles |
| 英文摘要 | Interference-free hyperbolic phonon polaritons (HPPs) excited by natural wrinkles in a hexagonal boron nitride (hBN) microcrystal are reported both experimentally and theoretically. Although their geometries are off-resonant with the excitation wavelength, the wrinkles compensate for the large momentum mismatch between photon and phonon polariton, and launch the HPPs without interference. The spatial feature of wrinkles is about 200 nm, which is an order of magnitude smaller than resonant metal antennas at the same excitation wavelength. Compared with phonon polaritons launched by an atomic force microscopy tip, the phonon polaritons launched by wrinkles are interference-free, independent of the launcher geometry, and exhibit a smaller damping rate (approximate to 0.028). On the same hBN microcrystal, in situ nanoinfrared imaging of HPPs launched by different mechanisms is performed. In addition, the dispersion of HPPs is modified by changing the dielectric environments of hBN crystals. The wavelength of HPPs is compressed twofold when the substrate is changed from SiO2 to gold. The findings provide insights into the intrinsic properties of hBN-HPPs and demonstrate a new way to launch and control polaritons in van der Waals materials. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 研究领域[WOS] | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 关键词[WOS] | GRAPHENE DOMAIN-WALLS ; NEGATIVE REFRACTION ; PLASMONIC PHENOMENA ; METAMATERIALS ; REFLECTION ; NANOSCALE ; EDGE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000412452500014 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/150162]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Collaborat Innovat Ctr Quantum Matter, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Dalian Inst Chem Phys, Ctr Theoret & Computat Chem, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Jiahua,Chen, Runkun,Li, Jingcheng,et al. Launching Phonon Polaritons by Natural Boron Nitride Wrinkles with Modifiable Dispersion by Dielectric Environments[J]. ADVANCED MATERIALS,2017,29(38). |
| APA | Duan, Jiahua,Chen, Runkun,Li, Jingcheng,Jin, Kuijuan,Sun, Zhigang,&Chen, Jianing.(2017).Launching Phonon Polaritons by Natural Boron Nitride Wrinkles with Modifiable Dispersion by Dielectric Environments.ADVANCED MATERIALS,29(38). |
| MLA | Duan, Jiahua,et al."Launching Phonon Polaritons by Natural Boron Nitride Wrinkles with Modifiable Dispersion by Dielectric Environments".ADVANCED MATERIALS 29.38(2017). |
入库方式： OAI收割
来源：大连化学物理研究所
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