Antenna-Coupled Light Emission from Two-Dimensional Materials

被引：1
|
作者：
Bharadwaj, Palash [1 ]
Parzefall, Markus [2 ]
Jain, Achint [2 ]
Novotny, Lukas [2 ]
机构：
[1] Rice Univ, Elect & Comp Engn, Houston, TX 77005 USA
[2] Swiss Fed Inst Technol, Photon Lab, CH-8093 Zurich, Switzerland
来源：
MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS IX | 2017年 / 10194卷
关键词：
Optical antennas; tunnel junctions; two dimensional materials; TUNNEL-JUNCTIONS; PHOTON-EMISSION;
D O I：
10.1117/12.2262152
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We have studied the ultrafast conversion of electrons localized in vertical Au-hBN-Au tunnel junctions to free-space photons, mediated by resonant slot antennas. We achieve polarized, directional and resonantly enhanced light emission from inelastic electron tunneling and establish a novel platform for studying the interaction of electrons with strong electromagnetic fields. Further, we show that plasmonic antennas made from a gold nanoparticle dimer coupled with a semiconducting 2D material (MoS2) offer control over emission directionality.
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页数：6
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