Four-wave parametric oscillation in sodium vapor by electromagnetically induced diffraction.
We have observed a novel type of parametric oscillation in sodium atomic vapor where four off-axis signal waves simultaneously build up under resonant and counterpropagating pump beams with elliptical beam profiles. The four waves, two of them Stokes shifted and the other two anti-Stokes shifted, have similar output powers of up to 10 mW with a conversion efficiency of 30% and are parametrically coupled by electromagnetically induced diffraction.
Harada
Ken-ichi
K
Japan Science and Technology Agency, Japan.
Ogata
Minoru
M
Mitsunaga
Masaharu
M