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The generation of fractional vortex beams and their propagation have been interesting research topics in recent years. In this paper we introduce a new type of fractional double-vortex beam, which is generated by the coaxial superposition of the vortex beams with two different fractional topological charges, and its total intensity distribution is of double-ring. We study the generation of this kind of beam theoretically and experimentally. It is shown that the rings of the fractional double-vortex beams carry different orbital angular momenta, from each other and propagate independently. The fractional double-vortex beams possess diverse manipulations as compared with the vortex beams with integer or single fractional charges. Therefore, the fractional double-vortex beam will be of great significance in optical rotation and manipulation of microscopic particles.
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Keywords:
- optical vortex /
- topological charges /
- fractional double-vortex beams
[1] Allen L, Beijersbergen M W, Spreeuw R J C, Woerdman J P 1992 Phys. Rev. A 45 8185
[2] [3] Zhang L, Cai Y J, Lu X H 2004 Acta Phys. Sin. 53 1777 (in Chinese) [张蕾, 蔡阳健, 陆璇辉 2004 53 1777]
[4] [5] Liu P S, Lu B D 2007 Chin. Phys. 16 411
[6] Tao S H, Lee W M, Yuan X C 2003 Opt. Lett. 28 1867
[7] [8] Sueda K, Miyaji G, Miyanaga N, Nakatsuka M 2004 Opt. Express 12 3548
[9] [10] [11] Basisity I V, Pasko V A, Slyusar V V, Soskin M S, Vasnetsov M V 2004 J. Opt. A: Pure Appl. Opt. 6 S166
[12] [13] Zhang X B, Zhang W, Shu F J, Li Y P 2007 Acta Phys. Sin. 56 0213 (in Chinese) [张晓波, 张巍, 舒方杰, 李永平 2007 56 0213]
[14] [15] Li Y Y, Chen Z Y, Liu H, Pu J X 2010 Acta Phys. Sin. 59 1740 (in Chinese) [李阳月, 陈子阳, 刘辉, 蒲继雄 2010 59 1740]
[16] [17] Liu Y X, Pu J X 2011 Opt. Commun. 284 2424
[18] Lee W M, Yuan X C, Dholakia K 2004 Opt. Commun. 239 129
[19] [20] Tao S H, Lee W M, Yuan X C 2004 Appl. Opt. 43 122
[21] [22] Chattrapiban N, Rogers E A, Arakelyan I V, Roy R, HillWT 2006 Opt. Phys. 23 94
[23] [24] [25] Oemrawsingh S S R, de Jong J A, Ma X, Aiello A, Eliel E R, Hooft G W, Woerdman J P 2006 Phys. Rev. A 73 032339
[26] Tao S H, Yuan X C, Lin J 2005 Opt. Express 13 7726
[27] [28] Vyas S, Singh R K, Senthilkumaran P 2010 Opt. Laser Tech. 42 878
[29] [30] Zhang N, Davis J A,Moreno I, Lin J,Moh K J, Cottrell DM, Yuan X C 2010 Appl. Opt. 49 2456
[31] [32] Guo C S, Yu Y N, Hong Z P 2010 Opt. Commun. 283 1889
[33] [34] [35] Berry M V 2004 J. Opt. A: Pure Appl. Opt. 4 259
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[1] Allen L, Beijersbergen M W, Spreeuw R J C, Woerdman J P 1992 Phys. Rev. A 45 8185
[2] [3] Zhang L, Cai Y J, Lu X H 2004 Acta Phys. Sin. 53 1777 (in Chinese) [张蕾, 蔡阳健, 陆璇辉 2004 53 1777]
[4] [5] Liu P S, Lu B D 2007 Chin. Phys. 16 411
[6] Tao S H, Lee W M, Yuan X C 2003 Opt. Lett. 28 1867
[7] [8] Sueda K, Miyaji G, Miyanaga N, Nakatsuka M 2004 Opt. Express 12 3548
[9] [10] [11] Basisity I V, Pasko V A, Slyusar V V, Soskin M S, Vasnetsov M V 2004 J. Opt. A: Pure Appl. Opt. 6 S166
[12] [13] Zhang X B, Zhang W, Shu F J, Li Y P 2007 Acta Phys. Sin. 56 0213 (in Chinese) [张晓波, 张巍, 舒方杰, 李永平 2007 56 0213]
[14] [15] Li Y Y, Chen Z Y, Liu H, Pu J X 2010 Acta Phys. Sin. 59 1740 (in Chinese) [李阳月, 陈子阳, 刘辉, 蒲继雄 2010 59 1740]
[16] [17] Liu Y X, Pu J X 2011 Opt. Commun. 284 2424
[18] Lee W M, Yuan X C, Dholakia K 2004 Opt. Commun. 239 129
[19] [20] Tao S H, Lee W M, Yuan X C 2004 Appl. Opt. 43 122
[21] [22] Chattrapiban N, Rogers E A, Arakelyan I V, Roy R, HillWT 2006 Opt. Phys. 23 94
[23] [24] [25] Oemrawsingh S S R, de Jong J A, Ma X, Aiello A, Eliel E R, Hooft G W, Woerdman J P 2006 Phys. Rev. A 73 032339
[26] Tao S H, Yuan X C, Lin J 2005 Opt. Express 13 7726
[27] [28] Vyas S, Singh R K, Senthilkumaran P 2010 Opt. Laser Tech. 42 878
[29] [30] Zhang N, Davis J A,Moreno I, Lin J,Moh K J, Cottrell DM, Yuan X C 2010 Appl. Opt. 49 2456
[31] [32] Guo C S, Yu Y N, Hong Z P 2010 Opt. Commun. 283 1889
[33] [34] [35] Berry M V 2004 J. Opt. A: Pure Appl. Opt. 4 259
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