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Plasmon resonances of metallic bowtie nanoantennas. 
Resonantly enhanced electric fields and steep field gradients are confined to a sub-wavelength region in the vicinity of the sharp tips.  
Computed using local mesh refinement of the Finite Difference Time Domain (FDTD) method in 3D.
Movie shows the field distributions of metallic nano-structures designed to produce intense optical fields confined to sub-wavelength spatial dimensions.

Intensity740nm

Plasmon resonances of metallic bowtie nanoantennas. Resonantly enhanced electric fields and steep field gradients are confined to a sub-wavelength region in the vicinity of the sharp tips. Computed using local mesh refinement of the Finite Difference Time Domain (FDTD) method in 3D. Movie shows the field distributions of metallic nano-structures designed to produce intense optical fields confined to sub-wavelength spatial dimensions.



Movie specs:
2.5MB
MPEG2
800x6000
30.000 fps
625.0 kbyte/s