
%0 Journal Article
%A Shakhmuratov, R. N. 
%T Influence of Giant Nuclear-spin Polarisation on Resonant Gamma-ray Absorption and Emission
%J Australian Journal of Physics
%D 1998/05/29
%V 51
%N 2
%P 339-348
%K 
%R https://doi.org/10.1071/P97057
%U https://www.publish.csiro.au/paper/P97057 
%X We propose a new scheme of gamma-quanta amplification without inversion. Laser pumping of electron states creates giant nuclear-spin polarisation via the hyperfine interaction. This results in extreme cooling of the ground-state nuclear spin in a projection which does not absorb both laser pump and gamma-quanta according to selection rules for these transitions. Induced emission from the nuclear excited state is not influenced by the pump. Therefore gamma-quanta travelling inside the pump beam have an opportunity to induce stimulated emission without subsequent quenching by ground state nuclei. 
