  The helicity flux operator is a fascinating quantity that characterizes the
angular distribution of the helicity of radiative photons or gravitons and it
has many interesting physical consequences. In this paper, we construct the
electromagnetic helicity flux operators which form a non-Abelian group in
general dimensions, among which the minimal helicity flux operators form the
massless representation of the little group, a finite spin unitary irreducible
representation of the Poincar\'e group. As in four dimensions, they generate an
extended angle-dependent transformation on the Carrollian manifold.
Interestingly, there is no known corresponding bulk duality transformation in
general dimensions. However, we can construct a topological Chern-Simons term
that evaluates the minimal helicity flux operators at $\mathcal{I}^+$.
