[1] Shandong Normal Univ, Shandong Prov Engn & Tech Ctr Light Manipulat, Jinan 250358, Peoples R China
[2] Shandong Normal Univ, Sch Phys & Elect, Shandong Prov Key Lab Opt & Photon Device, Jinan 250014, Peoples R China
[3] Shandong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Peoples R China
[4] Dalhousie Univ, Dept Elect & Comp Engn, Halifax, NS B3J 2X4, Canada
[5] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China
[6] Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 4R2, Canada