Can Commandos Bypass a Force Field with an EM Emitter in Sci-Fi?

[zoobyshoe]

Zoobyshoe: Any fiction writing must be good writing first, which means good story telling. But I think that good s.f. needs to keep its facts straight.

All you need to do is present whatever technology you please as a fait accompli and simply obviate any need to explain how it came to be. It will be successful if it fits in with the texture and ambiance of the whole. The average reader or movie goer isn't a physicist and won't even appreciate it if your technology is all a smooth extention of today's science. They already don't know how their computers, and microwaves and televisions work. They want good characters in good plot situations. If your story is bad, no one will care that you worked out a really plausible force field based on conventional EM fields.