[15p-B508-1~7] 3.16 Optics and Photonics English Session

▲ [15p-B508-7] Tunable Resonance Coupling in a 1D Plasmonic-Exciton Hybrid Systems

〇(D)Min-Wen YU^1,2, Satoshi Ishii², Shisheng Li², Ji-Ren Ku¹, Jhen-Hong Yang¹, Kuan-Lin Su¹, Takaaki Taniguchi², Tadaaki Nagao², Kuo-Ping Chen¹ (1.NCTU, Taiwan, 2.NIMS, Japan)

Keywords:Strong coupling, Plasmonic, 2D materials

Atomic layers of transition metal dichalcogenides (TMDCs) have recently gained numerous attentions owing to their exciting optical and electronic properties. Monolayer, molybdenum and tungsten based TMDCs become direct band gap semiconductor, with strong binding energies which make them as perfect candidates for light-matter coupling system. We demonstrate strong coupling in plasmonic-exciton hybrid systems by incorporating monolayer of molybdenum disulfide MoS₂ onto 1D Au nanogrooves arrays which can provide giant photoluminescence (PL) enhancement when the surface plasmon resonance matches to the MoS₂ exciton. The strong coupling has also been confirmed by Kelvin probe force microscope (KPFM) and Rabi splitting estimation. Our attempts pave the way to an exciting field of nanophotonic, optoelectronic, and quantum optical devices based on plasmonic-exciton coupling at a room temperature.