No..it doesn't have photon technology, I'm pretty sure about that..at least according from what I read
BD free is a good option, it's light and stable (some people even said it's a cloud AV that's why it's light) the beta version has a bug that if BD free detected any FP's item then it's impossible to restore, but for now they fixed it already. My suggestion is just stick with Emsisoft till expired, and if you really want to use BD free, just keep in mind BD free is an Av that almost cannot being configured, everything on it it's automatic, no need to configure and anything, I think it would be a great idea for anyone who doesn't want to messed up with these things, but for an engineer or tweaker..you would likely to be disappointed, but apart from that..it's pretty good program and has a same signature with the paid version (BD staff said that)