Figure 1 – (a) SEM image of a nanorod/nanophosphor heterodimer created using template-assisted self-assembly. Upconverted light emission for excitation polarization (b) longitudinal and (c) transverse to the nanorod axis. Strong emission for longitudinal polarization reflects plasmonic enhancement of absorption. Schematics showing the (d) “squeegee” and (e) capillary template-assembly methods developed.