Link to the paper in Optica, "Shadow of a laser beam" https://opg.optica.org/optica/fulltext.cfm?uri=optica-11-11-1549&id=563468 https://opg.optica.org/optica/

Link to the paper in Optica, "Shadow of a laser beam" https://opg.optica.org/optica/fulltext.cfm?uri=optica-11-11-1549&id=563468 https://opg.optica.org/optica/fulltext.cfm?uri=optica-11-11-...