If you're cooking your salmon to medium rare, there's actually no need to finish it in the oven. Heat the oil in a pan until smoking on medium high, add the salmon, and then turn the heat down to medium after about 1 minute. For the average fillet thickness (not steak cut), it will only take 3-4 minutes on the first side and then 2 minutes on the second. Hopefully you're using wild salmon. Whatever you do, don't use the farm raised ones.
"Boldness has genius, power, and magic in it."
Johann Wolfgang Von Goethe