vibrato

hi guys

is there an articulation symbol for vibrato ?
what if i want the vibrato only at the end of each note ? how to write that on score ?

thanks in advance
spacey

Sure you can. As long as you define your terms, a lot of specification is up to you. In modern music, you'll see a lot of instructions simply written out in plain English. Don't be afraid to do that as long as it's consistent and efficient and/or obvious/clear for the player. 

Thanks !!