Routing the Second-Harmonic Signals from a WSe₂ Monolayer using a Plasmonic Nanocircuit

Pei-Yuan Wu^1*, Tzu-Yu Chen¹, Wei-Qing Lee¹, Chang-Hua Liu¹, Chen-Bin Huang¹

¹Institute of Photonics Technologies, National Tsing Hua University, Hsinchu, Taiwan

* Presenter:Pei-Yuan Wu, email:pearlwu0310@gmail.com

We experimentally demonstrate the second-harmonic signals generated in a WSe₂
monolayer can be effectively coupled into a plasmonic nanocircuit. For the first time, we show
the resulting surface plasmon polaritons can be selectively routed.

Keywords: 2D material, second-harmonic generation, surface plasmon, optical routing