Figure 5.

Far-field scattering plots showing the angles at which light is scattered back into the Si from the rear interface of the cell. The rear reflector used included 200 nm or 675 nm diameter NSs embedded in a silver film at the rear of semi-infinite Si. The array period of the NSs was 800 nm. The wavelengths selected were at resonance for the 675 nm NS case, and off resonance for the 200 nm NS case. 700 nm resonance C, 875 nm resonance B, 1050 nm light - between resonance A and B - shows the large boost in large angle scattering between resonances.