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Nanomaterials 2019, 9(1), 87;

Simultaneous Generation of Complex Structured Curve Beam

Joint International Research Laboratory of Information Display and Visualization, School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
Author to whom correspondence should be addressed.
Received: 8 December 2018 / Revised: 2 January 2019 / Accepted: 7 January 2019 / Published: 11 January 2019
(This article belongs to the Special Issue Nano-Optical Tweezers)
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At present, people are using holographic technologies to shape complex optical beams for both fundamental research and practical applications. However, most of the reported works are focusing on the generation of a single beam pattern based on the computer-generated hologram (CGH). In this paper, we present a method for simultaneously shaping the multiple beam lattice where the intensity and phase of each individual beam can be prescribed along an arbitrary geometric curve. The CGH that is responsible for each individual beam is calculated by using the holographic beam shaping technique, afterwards all the CGHs are multiplexed and encoded into one phase-only hologram by adding respective linear phase grating such that different curves are appeared in different positions of the focal regions. We experimentally prove that the simultaneous generation of multiple beams can be readily achieved. The generated beams are especially useful for applications such as multitasking micro-machining and optical trapping. View Full-Text
Keywords: beam shaping; computer holography; spatial light modulation beam shaping; computer holography; spatial light modulation

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Wu, J.; Tang, X.; Xia, J. Simultaneous Generation of Complex Structured Curve Beam. Nanomaterials 2019, 9, 87.

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