|
|
|
|
LEADER |
01765 am a22002413u 4500 |
001 |
111847 |
042 |
|
|
|a dc
|
100 |
1 |
0 |
|a Zhu, Linxiao
|e author
|
100 |
1 |
0 |
|a Massachusetts Institute of Technology. Department of Materials Science and Engineering
|e contributor
|
100 |
1 |
0 |
|a Lin, Hongtao
|e contributor
|
100 |
1 |
0 |
|a Hu, Juejun
|e contributor
|
700 |
1 |
0 |
|a Liu, Fengyuan
|e author
|
700 |
1 |
0 |
|a Lin, Hongtao
|e author
|
700 |
1 |
0 |
|a Hu, Juejun
|e author
|
700 |
1 |
0 |
|a Yu, Zongfu
|e author
|
700 |
1 |
0 |
|a Wang, Xinran
|e author
|
700 |
1 |
0 |
|a Fan, Shanhui
|e author
|
245 |
0 |
0 |
|a Angle-selective perfect absorption with two-dimensional materials
|
260 |
|
|
|b Springer Nature,
|c 2017-10-13T20:30:10Z.
|
856 |
|
|
|z Get fulltext
|u http://hdl.handle.net/1721.1/111847
|
520 |
|
|
|a Two-dimensional (2D) materials have great potential in photonic and optoelectronic devices. However, the relatively weak light absorption in 2D materials hinders their application in practical devices. Here, we propose a general approach to achieve angle-selective perfect light absorption in 2D materials. As a demonstration of the concept, we experimentally show giant light absorption by placing large-area single-layer graphene on a structure consisting of a chalcogenide layer atop a mirror and achieving a total absorption of 77.6% in the mid-infrared wavelength range (~13 μm), where the graphene contributes a record-high 47.2% absorptivity of mid-infrared light. Construction of such an angle-selective thin optical element is important for solar and thermal energy harvesting, photo-detection and sensing applications. Our study points to a new opportunity to combine 2D materials with photonic structures to enable novel device applications.
|
655 |
7 |
|
|a Article
|
773 |
|
|
|t Light: Science & Applications
|