Infrared and Laser Engineering, Volume. 46, Issue 6, 634001(2017)
Generation and application of optical vortices with arbitrary topological charges
Optical vortex(OV) has been researched and applied in various front fields. Here, a novel method, by combining vortex retarders and half waveplates, was proposed to generate OVs with arbitrary topological charges. As the optical transmissivity of the waveplates were high, the energy efficiency of OV with topological charge of 3 was still higher than 93% in experiments. Further, the interference method was employed to detect topological charges of the generated OVs, by the direction and number of forks in the fork like pattern. As last, surface plasmon polariton (SPP) field was excited by highly focused OV with topological charge of 3, and gold particles were attracted and manipulated in the plasmonic vortex field. The results demonstrate significance of such method, and it will express enormous potential in various applications.
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Bu Jing, Zhang Lichao, Dou Xiujie, Yang Yong, Zhang Yuquan, Min Changjun. Generation and application of optical vortices with arbitrary topological charges[J]. Infrared and Laser Engineering, 2017, 46(6): 634001
Category: 光学工程优秀博士论文
Received: May. 5, 2017
Accepted: May. 20, 2017
Published Online: Jul. 10, 2017
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