Transfer of orbital angular momentum of light to cold cesium atoms

Summary form only given. We present experimental results on the transfer of the orbital angular momentum of light to a system of cold cesium atoms. A four-wave-mixing process was used as an indirect tool to observe this transfer. We have observed the transfer of optical angular momentum (OAM) of light from an optical beam to the system of cold cesium atoms. We use the non-degenerate four-wave mixing process (NDFWM) as an indirect tool in order to demonstrate this transfer.