Enhanced UV upconversion emission using plasmonic nanocavities

Year: 2016

Type: article

Abstract: core-shell nanoparticles trapped in judiciously designed plasmonic nanocavities. In doing so, different metal platforms and nanostructures are systematically investigated. Our results indicate that using a cross-shape silver nanocavity, a record high enhancement of 170-fold can be obtained in the UV band centered at a wavelength of 345 nm. The observed upconversion efficiency improvement may be attributed to the increased absorption at NIR, the tailored photonic local density of states, and the light out-coupling characteristics of the cavity.

Source: Optics Express

DOI: 10.1364/oe.24.013999

Authors: Ahmed El Halawany, Sha He, Hossein Hodaei, Ahmed Bakry, Mir A. N. Razvi, Ahmed Alshahrie, Noah J. J. Johnson, Demetrios N. Christodoulides, Adah Almutairi, Mercedeh Khajavikhan

Institutions: University of Central Florida, University of California San Diego, King Abdulaziz University

Language: English

Topic: Plasmonic and Surface Plasmon Research

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: National Science Foundation, U.S. Department of Energy, King Abdulaziz University, Deanship of Scientific Research, King Faisal University, National Institutes of Health, Office of Science, National Eye Institute, Division of Electrical, Communications and Cyber Systems, Basic Energy Sciences, Army Research Office

OpenAlex ID: W2422784259