Plexcitonic crystals: a tunable platform for light-matter interactions
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/12466
- Department of Physics 
Optical Society of America
Coupled states of surface plasmon polaritons (SPPs) and excitons are collectively called plexcitons [Nano Lett. 8, 3481 (2008)]. Plexcitonics is an emerging field of research aiming to control light-matter interaction at the nanometer length scale using coupled pairs of surface-plasmons and excitons. Ability to control the interaction between localized excitons and propagating surface-plasmons is important for realization of new photonic devices. In this letter, we report plexcitonic crystals that yield direction-dependent plasmon-exciton coupling. We have fabricated one- and two-dimensional plexcitonic crystals on periodically corrugated silver surfaces, which are loaded with J-aggregate complexes. We show that plasmon-exciton coupling is blocked for some crystal directions when exciton energy falls inside the plasmonic band gap of the periodically corrugated metallic surface. (C) 2014 Optical Society of America
Karademir, E., Balci, S., Kocabas, C., & Aydinli, A. (2014). Plexcitonic crystals: a tunable platform for light-matter interactions. Optics express, 22(18), 21912-21920.