Pulsed cooperative backward emissions from non degenerate atomic transitions in sodium

Video abstract for the article ‘Pulsed cooperative backward emissions from non-degenerate atomic transitions in sodium‘ by Jonathan V Thompson, Charles W Ballmann, Han Cai, Zhenhuan Yi, Yuri V Rostovtsev, Alexei V Sokolov, Phillip Hemmer, Aleksei M Zheltikov, Gombojav O Ariunbold and Marlan O Scully (Jonathan V Thompson et al 2014 New J. Phys. 16 103017).