Hi Guilin,

So, which will visualize power? Real value of T? I have found that Real value of T and Absolute value of T gives the same value. 

You have already mentioned T is power transmission, So real value of T or absolute value of T should give the power transmission result? Isn't it?

I think, If T is electric field then Abs^2 or square of abs value would represent the power then.

Like if T is power then Abs(T)/Re(T) will visulize power transmission.

if T is electic field then, Abs^2(T) will visulaize power transmission. As , P=E^2.

Please let me know your thoughts.