Observations of Autler-Townes spatial splitting of four-wave mixing image

• DOI: 10.1007/s00340-013-5430-5
• Publication Date: 2013-04-02T08:21:05Z
• Authors: Gaoping Huang; Jia Sun; Weikang Feng; Jiamin Yuan; Zhenkun Wu; Mengzhe Qin; Yiqi Zhang; Yanpeng Zhang
• Keywords: 0103 physical sciences; 01 natural sciences

We report the self- and external-dressed Autler-Townes (A-T) splittings of the images of the generated four-wave mixing signal (FWM) and electromagnetically induced transparency (EIT) of probe images in cascade three-level atomic system. Such spatial properties of probe and FWM signals are induced by the enhanced cross-Kerr nonlinearity. We demonstrate the controlled electromagnetically induced spatial dispersion (EISD), splitting and focusing of probe and FWM signals images by adjusting self- and external-dressing fields. Studies on such controllable A-T spatial splitting and spatial EIT effect can be very useful in applications of spatial signal processing and optical communication.