Abstract
We observed low-intensity cw degenerate four-wave mixing at the D1 resonance in a 10-μm-thick cesium-vapor cell. Normal population depletion caused by optical pumping is alleviated by frequent atom–wall collisions. The reflectivity at the D1 resonance is approximately equal in magnitude to that observed at the D2 cycling transition under similar conditions.
© 1994 Optical Society of America
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