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undamaged_array_105_01
 

Non-uniformity in the x direction due to the finite size of the array

Far-field measurement for a 31x31 array with different incident angles (0,2,5 deg).

Nature Phys. 2, 120 (Feb. 2006)

 31x31_array_247

The non-uniformity is caused by edges effect due to the finite size of the array.

This non-uniformity is sensible to the angle of the incident beam. This result points also to the involvement of surface plasmons.

 
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