NOT KNOWN FACTS ABOUT FE²�?ZNS CRYSTAL

Even so, this peak at ~978 nm was noticed in equally iron-doped and -undoped ZnSe single crystals, and its built-in intensity was greater in the iron-undoped sample in contrast Together with the iron-doped sample. Therefore, we believe that the luminescence peak at ~978 nm will not be connected with the emission band involving the doped iron atoms