Fig. 2.
Numerical simulation of the pyramid-plasmonic system. (A) A surface plot of the absolute value of the electric field component along dipole direction (Ey) at 521 nm. The local electric fields are sharply enhanced near the apex of the pyramid structure, which is in close proximity to the QD position. (B) Cross-sectional intensity profile of the magnetic field in log scale at 450 and 524 nm. Dashed guided lines represent the position of the silver film on the pyramid. (C) Relative LDOS enhancement at the position of the dipole in silver-coated planar and pyramid systems with respect to those without silver film.