Directional sideward emission from luminescent plasmonic nanostructures

Optics Express
Dick K G de BoerSaid Rahimzadeh-Kalaleh Rodriguez

Abstract

Periodic arrays of metallic nanoparticles can be used to enhance the emission of light in certain directions. We fabricated hexagonal arrays of aluminium nanoparticles combined with thin layers of luminescent material and optimized period (275 nm) and thickness (1500 nm) to obtain sideward directional emission into glass for a wavelength band around 620 nm. The key physics is that the luminescent layer acts as a waveguide, from which light is emitted at preferential angles using diffractive effects. This phenomenon has applications in the field of solid-state lighting, where there is a desire for small, bright and directional sources.

References

Aug 21, 2010·Science·Alberto G CurtoNiek F van Hulst
May 20, 2011·Nano Letters·Heykel AouaniJérôme Wenger
Jun 21, 2012·Optics Express·Dick K G de BoerPaul P C Verbunt
Sep 12, 2013·ACS Nano·Lutz LangguthA Femius Koenderink
Dec 24, 2014·Reports on Progress in Physics·P Törmä, W L Barnes

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Citations

Aug 24, 2016·Scientific Reports·Mikhail VasilievKamal Alameh
Jul 6, 2018·ACS Applied Materials & Interfaces·Antonio FerraroRoberto Caputo

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