[8a-S21-1~11] 【CS.5】3.11 & 3.12 Code Sharing session

[8a-S21-2] Superlinear Effect of Plasmonic Metasurfaces Fabricated on Quantum-Dot-Grown Substrates

〇Masanobu Iwanaga¹, Takaaki Mano¹, Naoki Ikeda¹ (1.NIMS)

Keywords:metasurface, plasmonic enhancement, quantum dot

Among plasmon-enhancement effects, luminescence enhancement has prominent successful reports so far. We experimentally studied photoluminescence (PL) extracted from quantum dots in a semiconductor. Our experimental results indicate that the PL intensity exhibits a superlinear response even under weak excitation, strongly suggesting that the plasmon-semiconductor coupled system forms a nonolinear system.