STIMULATED EMISSION BASED ON TWO-STEP HYBRID RESONANCE $A^{1}\Sigma_{u}^{+}$ OR $B^{1}\Pi_{u}$ STATE OF $Na.^{*}$

$^{*}$Projects Supported by the Science Fund of the Chinese Academy of Sciences. Address of authors Department of Physics. Rast. China Normal University, Shangai 20006 People's Republic of China.