You can use this if you prefer. We normally use the form with capitals and spaces, but it's not a rule.
I use

    @author Sanne Grinovero <sanne@hibernate.org> (C) 2014 Red Hat Inc.

which is a standard template widely used across various projects.
Or sometimes just

    @author Sanne Grinovero

Note that a nick isn't very useful, but the @author tag has legal implications in terms of copyright attribution.