Figure 6
Temperature distribution and thermal convection in PV tweezers.
(a) Temperature distribution on gold surface caused by the exciting of SPPs, the bottom is the gold film surface; (b) Velocity of thermal convection in PV tweezers. The circinal figure below is the excited PV field and the perpendicular section indicates the velocity distribution of convection. The green arrows demonstrate the directions and magnitudes of thermal convection, the color bar indicates the velocity. White scale bar in both figures is 5 μm.
