Multi-component optical azimuthons of four-wave mixing
Wang Rui-Min (王瑞敏), Wang Xing-Peng (王兴鹏), Wu Zhen-Kun (吴振坤), Yao Xin (姚鑫), Zhang Yi-Qi (张贻齐), Zhang Yan-Peng (张彦鹏)
School of Science & Key Laboratory for Physical Electronics and Devices of the Ministry of Education & Shaanxi Key Lab of InformationPhotonic Technique, Xi'an Jiaotong University, Xi'an 710049, China
Abstract We report the multi-component optical azimuthons of four-wave mixing (FWM) composed of several modulated vortex beams, the so-called azimuthons, in V-type three-level and two-level atomic systems. We analyze the formation mechanisms of the FWM azimuthons theoretically and experimentally. In addition, we illustrate the interactions between the co-propagating azimuthon components. Finally, we also compare the stabilities of azimuthons in V-type three-level and two-level atomic systems.
(Beam trapping, self-focusing and defocusing; self-phase modulation)
Fund: Project supported by the National Basic Research Program of China (Grant No. 2012CB921804), the National Natural Science Foundation of China (Grant Nos. 61308015, 11104214, 61108017, 11104216, and 61205112), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant Nos. 20110201110006 and 20110201120005), the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant Nos. 2012jdhz05, 2011jdhz07, xjj2011083, xjj2011084, xjj2012080, and xjj2013089), and China Postdoctoral Science Foundation (Grant No. 2012M521773).
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.