Engineering upconversion emission spectra using plasmonic nanocavities

    Authors

    C. Lantigua; S. He; M. A. Bouzan; W. Hayenga; N. J. J. Johnson; A. Almutairi;M. Khajavikhan

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Opt. Lett.

    Keywords

    ENERGY-TRANSFER; NANOCRYSTALS; NANOPARTICLES; LUMINESCENCE; Optics

    Abstract

    We show that the upconversion emission spectra of Tm3+ and Yb3+ codoped beta-NaYF4-NaYF4 core-shell nanoparticles can be judiciously modified by means of plasmonic nanocavities. Our analysis indicates that more than a 30-fold increase in conversion efficiency to the UV spectral band can be expected by engineering the NIR absorption and the local density of states. The effect of the nanocavity on the resulting radiation patterns is discussed. Our results are exemplified in cylindrical cavity geometries. (C) 2014 Optical Society of America

    Journal Title

    Optics Letters

    Volume

    39

    Issue/Number

    13

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    3710

    Last Page

    3713

    WOS Identifier

    WOS:000338933200004

    ISSN

    0146-9592

    Share

    COinS