From what we understand about mars, carbon dioxide deposites are
known to coexist with ice deposites at the south pole and possibly at
the north pole.

A microwave oven generates microwaves at a frequency of 900 Mhz. This
frequency is used because it causes resonation of hydrogen atoms.
Resonation creates heat. This is how food is cooked in a microwave,
by superresonating the hydrogen atoms within the water molecules.

If we were to build solar stations that converted sunlight into
electricity and then beamed to the martian polar regions at 900 Mhz,
the heat generated by the hydrogen would not only melt the ice but
also the carbon dioxide ice mixed with it. Of course the melting rate
would depend upon the overall energy distribution (which would
obviousely have to exceed the refreezing rate of the gasses or it
would be futile). But assuming you could generate a high enough
heating rate, the global partial pressure would increase would it not?

I would assume that nuclear reactors could also be used to generate
the energy beings mars is far enough from the sun to render solar
impractical for large-scale industry (as this would be classified).