Introducing discussion papers: editorial

Introducing JOSA A tutorials: editorial

“…Recognizing this, we have introduced new article types in recent years. The discussion paper [1] is meant to provide a format for interesting observations, questions, and any other sort of constructive commentary judged to be stimulating and useful. Mini-reviews afford us an opportunity to invite authors of our most influential papers to come back with a review of the field and the directions their work has taken since first publication.…”