Collision-assisted second-harmonic generation from Rydberg atoms
S. S. Vianna, Cid Bartolomeu de Araujo
Second-harmonic generation in rubidium vapor has been studied in the absence of external symmetry-breaking dc fields. It is shown that binary collisions between atoms in the presence of the fundamental laser beam leads to the generation of a coherent second-harmonic beam in accordance with a recent theoretical proposal [A. El\ifmmode \mbox{\c{c}}\else \c{c}\fi{}i and D. Depatie, Phys. Rev. Lett. 60, 688 (1988)].
Physical Review A•Jul 1, 1991•8 citations