You're really in a bad situation bud, it's sad to say that you really can't get the money back or the bitcoin back if you do have only the address. You need to have the private key of that account in order to have access in the wallet and get it, but i think it would be impossible since it's in your supervisor (Correct me if i'm wrong). But you can get track of the transaction in that address through blockchain but it would be hard if the bitcoin goes into exchange it will be untrackable.

If you know personally your supervisor you can just tell it to police and file a case against him/her. I may not be helpful enough sorry, I hope you learn your lesson.