Normalize mode's energy

I am designing an optical waveguide, and by using COMSOL I am trying to find its mode. Now, I'd like to normalize the mode's energy. I mean, as you know there is a color bar on the right side of the domain which shows the color corresponded to amount of energy of the mode in different part of the domain.

I want to normalize the energy of this mode so that the maximum and minimum number of this bar should be between zero and one. Could you please help me to it?