"However, a 2013 report from the Institute for Science and International Security (ISIS) concluded that Iran may be continuing to pursue laser enrichment technology at Lashkar Ab’ad. The authors of the report, David Albright and Serena Kelleher-Vergantini, analyzed satellite imagery of substantial recent construction at the Lashkar Ab’ad site in the context of articles on laser technology from Iranian scientific journals and official statements." [1]
[1] David Albright and Serena Kelleher-Vergantini, “Lashkar Ab’ad: Iran’s Unexplained Laser Enrichment Capabilities,” Institute for Science and International Security, 29 July 2013, isis.org.