Plasmonic Array to Tailor the Emission

When the metallic nanoparticles are arranged periodically in the scale of optical wavelengths, localized surface plasmon resonances excited on each nanoparticle can be coupled through diffraction. This collective plasmonic mode is spatially extended in the plane of  the array, where as localized surface plasmonis a local effect bound in the particle. In the talk, properties of the collective plasmonic mode are discussed with special emphasis on its application to emission modification. When the array is placed on the phosphorlayer, the emission profile of the layer changes drastically. Several experimental data with different emission centers are given, to demonstrate the power of the array to shape the emission both spatially and spectrally. We also show our recent result on TiN nanoparticle array with the collective plasmonic mode in the infrared and visible.

Shunsuke Murai received his PhD in engineering in 2011 from Kyoto University, Japan. He has been working in Kyoto Universityas an assistant professor since 2004. During 2010-2011, he was a visiting scientist at AMOLF, the Netherlands, in the group of Jaime Gomez Rivas, where he was involved in a research on optical response of plasmonic array. He is also a Precursory Research for Embryonic Science and Technology (PRESTO) researcher of Japan Science and Technology Agency (JST) since 2013. Recent research topics includes the spatial and spectral control of fluorescence by using plasmonic array, and ceramics (refractories)-based plasmonics.