Finite-size and Disorder Effects on 1D Unipartite and Bipartite Surface Lattice Resonances

Type of content
Journal Article
Thesis discipline
Degree name
The Optical Society
Journal Title
Journal ISSN
Volume Title
Moore, Ciaran
Alkaisi, Maan
Warren, Aran

Optical resonances in bipartite metal nanostructure lattices are more resilient to finite size-effects than equivalent unipartite lattices, but the complexities of their behaviour in non-ideal settings remain relatively unexplored. Here we investigate the quality factor and extinction efficiency of 1D Ag and Au unipartite and bipartite lattices. By modelling finite size lattices over a range of periods we show that the quality factor of Ag bipartite lattices is significantly better than unipartite lattices. This improvement is less pronounced for Au bipartite lattices. We also show that bipartite lattices are dramatically affected by structure size variations at scales that are typically seen in electron beam lithography fabrication in contrast to unipartite lattices, which are not as sensitive.

Warren A, Alkaisi M, Moore C (2022). Finite-size and Disorder Effects on 1D Unipartite and Bipartite Surface Lattice Resonances. Optics Express.
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
0205 Optical Physics
0906 Electrical and Electronic Engineering
1005 Communications Technologies
Fields of Research::40 - Engineering::4009 - Electronics, sensors and digital hardware::400909 - Photonic and electro-optical devices, sensors and systems (excl. communications)
Fields of Research::51 - Physical sciences::5102 - Atomic, molecular and optical physics::510204 - Photonics, optoelectronics and optical communications
Fields of Research::40 - Engineering::4018 - Nanotechnology::401809 - Nanophotonics
Fields of Research::40 - Engineering::4018 - Nanotechnology::401807 - Nanomaterials
Fields of Research::40 - Engineering::4016 - Materials engineering::401605 - Functional materials
All rights reserved unless otherwise stated