According the the comment reply FAQ, it's possible to @-notify close voters in a very particular set of circumstances:
For questions: The moderator or gold badge holder who closed or reopened the question, provided they were the only one to do so. Users who have closed or reopened a question without a binding close vote (i.e. without a gold tag badge or a moderator vote), and those who bindingly voted, but other users were also involved (e.g. closed by User1, User2, and Moderator) cannot be notified. [emphasis added]
However, here is a question which was closed by two regular users and a moderator, where the moderator involved (me) did receive an @-notification, without having left any comment.
System working differently from designed? A documentation error? An intentional but undocumented change? The new normal? Inquiring minds, etc.
To clarify, this does work as per the above specification for binding duplicate closures by non-mod gold badge holders (i.e. there's no notification in that case); the notification is only raised for closures by a moderator (including cases where a moderator also happens to possess a gold badge and closes as a duplicate)