[21p-A309-1~18] 3.11 Nanoscale optical science and near-field optics (formerly 3.12)

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[21p-A309-11] Enhancement of Atomic-Layer Photoluminescence by Plasmon–Photon Hybrid Metasurfaces

〇Masanobu Iwanaga¹, Xu Yang¹, Vasilios Karanikolas¹, Takashi Kuroda¹, Yoshiki Sakuma¹ (1.NIMS)

Keywords:

atomic layer materials,metasurface,plasmon-photon hybrid

Although transition metal dichalcogenites can be monolayer, they exhibit the photolumionescence (PL) and conductivity as a direct bandgap semiconductor. In this study, we transferred continuous WS₂ atomic layers, grown on a sapphire substrate by chemical vapor deposition, to plasmon-photon hybrid metasurfaces, and examined their PL enhancement. At the presentation, we will report the enhancement effect by improving the quality of transferred monolayers, and the analysis results regarding the PL lifetime, the confocal PL image, etc. We also discuss Purcell effect.