Subwavelength localization of light in waveguide structures

Modeling with FullWave and Fimmwave showed, that in gradient planar Si secant waveguides basic TE-mode can have width 0.09"lambda"; hybrid HE11 mode can have diameter 0.03"lambda" in a hollow silica round step waveguide; basic TM-mode have width 0.065"lambda" in nano-slot silica waveguide; planar secant gradient microlens can imaging of two source in 0.15"lambda" distance between them; gradient planar lens "fish eye" in mirror resonator can image point source as a spot width of 0.18"lambda"; planar secant gradient microlens, used as round resonator, size of 6.5x5.34 m can link two planar subwave waveguides width of 386 nm with efficiency is equal to 79% (similar round silicon have efficiency of 71%); light mode (plasmon) propagates in planar metal waveguide in slot along waveguide borders and penetrates in metal on 0.039"lambda" (Ag); TM-mode (plasmon) propagates in argentum film and fills fully a slot in it width of 50 nm (width of mode is 0.111"lambda").