My sympathies to you, but I hope you told the police. Look into a spell to help catch him. If you want revenge, look into a revenge spell or hex, I will warn you, sinc you know nothing about him, you need to visualize the person, and being so soon, do you really wish to relive it? Look into therapy and ways to move on, it's better in the long run than letting him live in your head. Anger is healthy at this point, but try to move past this stage.
Woah. Wait up a second. First, as others have said, call the police, don't cast a spell.
And later, after you do that, you can CONSIDER a spell. But, casting a spell requires a lot of visualization, and I don't think you want to focus on that moment.
Also, while whoever raped you deserves terrible things to happen to him, you do not need to be the one to deal out that punishment. If you are new to spells, something like that could backfire and you could get even more hurt.
I would suggest trying to find healing spells for yourself. And protection spells. They are a little easier, and aren't as likely to backfire. I would also suggest that you study witchcraft, wicca, or paganism some so you can get a better grasp on what you're dealing with. You can't just dive head first into this stuff.