Figure 4

I–V curves of the TES (a) at different heat-bath temperatures and (b) at \(100~\text{mK}\) temperature under bright laser illumination. Dots are measurement results while a solid line is their bin-averaging. For ease of comparison between the plots, the curves from (a) are reprinted as black dotted lines in (b); it can be seen that the plots closely resemble each other. This confirms Eve’s ability to control TES’s temperature using bright light through the input fiber