Book ID: Technology World vs Magic World in a multiverse setting

I'm searching for a book series (Sci-fi/fantasy) that could be from the 90's or later that I read a few years back, all I remember is the plot from the first book:

Two worlds - one based in technology and the other in magic send out expeditions to other worlds via portals to survey them for resources. The two teams meet up and the tech world team kills the magic world team, leaving only one survivor - a woman with psychic like abilities. A war between the two worlds develop, spanning the multiverse. If anyone knows the title/author, would appreciate a reply.

Thanks in advance :)