Generic type as string name

I don't know how to phrase my question.
I have Calss with Generic type. 
I.E.

public calss EntMgr where T: EntityObject
{
               public  T Get() {
                  return  context.CreateQuery(typeof(T).Name).ToList();
               }
}

 
Now in  I want to use that class from another class where I pass the Generectype as a string Value.
I.e.

public class Proxy{
    public EntityObject Get(string entityObject)
{
     Type type = Type.GetType(entityObject);
      EntMgr emr = new EntMgr();
      emr.get();
}
 

 
This doesn't work .
Is there a way to do something like that?
I know it is possible to work with "Activator"
But it creates unnecessary object.