Title :
Enhancement of electromagnetic field intensity by metallic photonic crystal for efficient upconversion
Author :
Paudel, Hari P. ; Bayat, Khadijeh ; Baroughi, Mahdi Farrokh ; May, Stanley ; Galipeau, David W.
Author_Institution :
Dept. of Electr. Eng., South Dakota State Univ., Brookings, SD, USA
Abstract :
2D arrays of cylindrical and rectangular gold nanopillars in square and triangular lattice were investigated for maximum field intensity enhancement above the metal dielectric interface. 3D-FDTD method was used for investigation and design of metallic photonic crystal. Photonic crystal was designed for maximum electromagnetic field intensity enhancement in infrared radiation centered at 980 nm wavelength. It was found that gold nanopillars of thickness 70nm, diameter 310nm and periodic in 620nm enhances the electromagnetic intensity by 100 times above the metallic nanopillars by exciting surface plasmon resonance. Enhancement of near-field intensity by two orders of magnitude is the promising way to increase the upconversion of infrared radiation by rare earth doped nanoparticles, such as NaYF4:Er,Yb.
Keywords :
electromagnetic fields; finite difference time-domain analysis; photonic crystals; surface plasmon resonance; 3D-FDTD method; cylindrical gold nanopillars; electromagnetic field intensity; infrared radiation; maximum field intensity enhancement; metal dielectric interface; metallic photonic crystal design; near field intensity; rare earth doped nanoparticles; rectangular gold nanopillars; size 310 nm; size 70 nm; square lattice; surface plasmon resonance; triangular lattice; wavelength 980 nm; Lattices; Metals; Optical surface waves; Photonic crystals; Photovoltaic cells; Plasmons; Surface waves;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2010 35th IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-5890-5
DOI :
10.1109/PVSC.2010.5614546
