Fig. 2: Control over a plasmonic focus.
From: Dynamic control and manipulation of near-fields using direct feedback
Different positions of the plasmonic focus inside an area of 1.5 µm x 1.5 µm. The plasmonic focus is moving from the center (a) to (-0.75,0.75) µm (b) and continue to the other side points in (c–e). f–j The SLM phase masks desired for the measurements (a–e) respectively
