Effect of stimulated processes on the spectrum of spontaneous parametric luminescence in a strong field

Carson L. Tang

Boris Ya Zel'dovich, Давид Николаевич Клышко

M. E. Movsesyan, T. O. Ovakimyan, Svetlana Shmavonyan

The article gives the results of a study of the effect of He buffer gas on nonlinear processes during two-photon excitation of rubidium vapor. In addition to four-photon parametric luminescence and a stimulated four-photon parametric process, lines of two-photon decay and stimulated electronic Raman scattering, not previously observed in rubidium vapor, have been obtained. The dependences of these processes on the pressure of the buffer gas and on the frequency of the exciting radiation are investigated and discussed.

K. Hakuta, Masaru Suzuki, M. Katsuragawa +1 more

We show through the experiments of parametric anti-Stokes stimulated Raman scattering for solid hydrogen that the phase matching in a parametric process can be self-induced without the stringent restriction of the medium. We explain this self-induced phase matching as a consequence of strong coupling between radiation fields and medium spontaneously established through the stimulated Raman scattering process.

Alexandra Rapaport, Michael A. Bass

L.O. Schwan