of course not. you're right, i should be more general an say any electric dipole, but what i was trying to point out was that microwaves don't directly radiate

of course not. you're right, i should be more general an say any electric dipole, but what i was trying to point out was that microwaves don't directly radiate heat and instead vibrate/rotate certain molecules. so, heat sensitive paper isn't going to work, unless there's some that have dye that will interact with a microwave.