Krishnagopal, S.Vinit KumarMaiti, S.Prabhu, S. S.Sarkar, S. K.2019-09-242019-09-242004Current Science, 2004. Vol. 87 (8): pp. 1066-1078http://hdl.handle.net/123456789/195123849 bytestext/htmlenFree-Electron Laserselectron beaminfrared and far-infrared radiationself-amplified spontaneous emission principleArticle