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DOI | 10.1038/s41467-019-09537-8 |
Ultrafast radiative heat transfer | |
Yu, Renwen1; Manjavacas, Alejandro2; Garcia de Abajo, F. Javier1,3 | |
2019-04-09 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | Spain; USA |
英文摘要 | Light absorption in conducting materials produces heating of their conduction electrons, followed by relaxation into phonons within picoseconds, and subsequent diffusion into the surrounding media over longer timescales. This conventional picture of optical heating is supplemented by radiative cooling, which typically takes place at an even lower pace, only becoming relevant for structures held in vacuum or under extreme thermal isolation. Here, we reveal an ultrafast radiative cooling regime between neighboring plasmon-supporting graphene nanostructures in which noncontact heat transfer becomes a dominant channel. We predict that more than 50% of the electronic heat energy deposited on a graphene disk can be transferred to a neighboring nanoisland within a femtosecond timescale. This phenomenon is facilitated by the combination of low electronic heat capacity and large plasmonic field concentration in doped graphene. Similar effects should occur in other van der Waals materials, thus opening an unexplored avenue toward efficient heat management. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000408172000001 |
WOS关键词 | GRAPHENE PLASMONS ; PHOTORESPONSE ; POLARITONS ; ABSORPTION ; DYNAMICS ; PARTICLE ; CHARGE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204315 |
专题 | 资源环境科学 |
作者单位 | 1.Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Castelldefels 08860, Barcelona, Spain; 2.Univ New Mexico, Dept Phys & Astron, 1919 Lomas Blvd NE, Albuquerque, NM 87131 USA; 3.ICREA, Passeig Lluis Companys 23, Barcelona 08010, Spain |
推荐引用方式 GB/T 7714 | Yu, Renwen,Manjavacas, Alejandro,Garcia de Abajo, F. Javier. Ultrafast radiative heat transfer[J]. NATURE COMMUNICATIONS,2019,8. |
APA | Yu, Renwen,Manjavacas, Alejandro,&Garcia de Abajo, F. Javier.(2019).Ultrafast radiative heat transfer.NATURE COMMUNICATIONS,8. |
MLA | Yu, Renwen,et al."Ultrafast radiative heat transfer".NATURE COMMUNICATIONS 8(2019). |
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