Find Nth Highest Salary of Employee in Sql server

How to get 2nd, 3rd, 4th, nth topmost salary from an Employee table.

we can get top salary in 2 ways

1)

select top 1 salary from
( select distinct top n salary from Employee order by salary desc ) a
order by Salary

2)

select * from Employee e where n-1 =
(select count(Salary) from Employee f where e.EmpId <= f.EmpId)                                           -- this query won't work for 1st highest salary

In the above query  n = 2nd, 3rd ..... nth salary as per your requirement