ALPS Poster Session 2

[ALPSp2-24] Polarization Sensitive Photoresponse in a Gap-Plasmon-Enhanced NbN Superconducting Photon Detector

*Feng-Yang Tsai^1,2, Jing-Wei Yang¹, Jia-Wern Chen¹, Yu-Jung Lu^1,2 (1. Academia Sinica, 2. National Taiwan University)

We designed and demonstrated a polarization-sensitive plasmonic superconducting single-photon detector (SSPD) using NbN superconducting microwire coupled with silver nanorod nanoresonators. The plasmonic SSPD exhibit a nonlinear photoresponse in the visible range operated at 13 K via gap plasmon resonance.