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Zhao, Rui (author), Jiang, M. (author), Zhang, Shuoshuo (author), Man, Zhongsheng (author), Wang, Benyi (author), Ge, Xiaolu (author), Zhang, Wenfei (author), Zhang, Yuquan (author), Fu, Shenggui (author)A new type of radially polarized (RP) cosine-Gaussian (CG) field is proposed. Through the analytical model, it is found that such RP CG beam exhibits completely different focusing properties from the reported RP plane waves. More importantly, a stable three-dimensional trap of Rayleigh particle accompanied by a subwavelength spin motion can...journal article 2022