Start by toasting the sesame seeds. Heat up a skillet over medium high heat and toast them, stirring frequently. I like my cast iron pan for this.
Mix up the marinade and marinate the salmon for 30 minutes or so. If you're going to be any longer than 30 minutes I'd refrigerate, otherwise I'd do this at room temperature.
Meanwhile, mix up the glaze and set aside.
You can broil this but I like to grill it so preheat the grill (or broiler).
Remove the salmon from the marinade and grill skin side down just until done. Timing totally depends on the thickness of your salmon.
Remove the salmon to a serving dish and pour the glaze on, then sprinkle with the sliced green onions and sesame seeds.