[18p-WL2_201-1~13] 3.11 Nanoscale optical science and near-field optics

1:15 PM - 1:30 PM JST(4:15 AM - 4:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[18p-WL2_201-1] Development of a method for controlling dispersion diagrams via thickness optimization of metal/emitter layers to enhance ZnO luminescence

〇Takahiro Seto¹, Soh Uenoyama¹ (1.Hamamatsu Photonics K.K.)

Keywords:

surface plasmon resonance,luminescence enhancement,Zinc Oxide

Surface plasmon (SP) resonance generates localized electromagnetic fields near metal thin films, significantly enhancing the luminescence of emitters. Achieving strong enhancement requires tuning the SP dispersion diagram to obtain a large wavevector at the emission wavelength; however, this has been challenging due to constraints imposed by material permittivity. Here, we present a strategy to control the dispersion diagram by exploiting near-field interactions between adjacent layers through thin-film formation and optimization of metal and dielectric layers. This approach achieves approximately 50-fold enhancement at the ZnO emission wavelength of 390 nm.