Beam Steering Control of Liquid Prism Array Based on Electrowetting-on-Dielectric in Three-Dimensional Space

Longxiao Yang; Rui Zhao; Meimei Kong; Tao Chen; Jianfei Guan; Zhongcheng Liang

doi:10.3788/LOP56.162201

Laser & Optoelectronics Progress, Volume. 56, Issue 16, 162201(2019)

Beam Steering Control of Liquid Prism Array Based on Electrowetting-on-Dielectric in Three-Dimensional Space

Longxiao Yang, Rui Zhao^*, Meimei Kong, Tao Chen, Jianfei Guan, and Zhongcheng Liang

Center of Optofluidic Technology, College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjng, Jiangsu 210023, China

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Figures & Tables(8)

Fig. 1. Structural diagram of liquid prism unit. (a) Diagram of applied voltage control; (b) diagram of optical path deflection

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Fig. 2. Beam steering diagrams of liquid prism. (a) Infinite focal length; (b) focusing on Z axis

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Fig. 3. Liquid prism arrangement in horizontal direction

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Fig. 4. Beam steering region of liquid prism array

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Fig. 5. Diagrams of beam steering control. (a) Infinite focal length; (b) focusing on Z axis; (c) focusing on X axis; (d) focusing on Y axis

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Fig. 6. Relationship between focal length f and steering angle under different spacing r

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Table 1. Parameter settings
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Table 1. Parameter settings
Variable Value
Zero voltage contact angle θ /(°) 165
Surface tension γ /( N·m^-1) 0.0069
Relative dielectric constant ε 2.65
Dielectric thickness d_f /μm 3
Applied voltage V_app /V 120

Table 2. Settings of liquid parameters
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Table 2. Settings of liquid parameters
Liquid Density /(kg·m^-3) Refractivedynamicindex n Dynamicviscosity /(10^-3 Pa·s)
0.01%KCL/1% SDS 1000 1.33 2.7
50% C12/1-CN 1000 1.539 4.13

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Longxiao Yang, Rui Zhao, Meimei Kong, Tao Chen, Jianfei Guan, Zhongcheng Liang. Beam Steering Control of Liquid Prism Array Based on Electrowetting-on-Dielectric in Three-Dimensional Space[J]. Laser & Optoelectronics Progress, 2019, 56(16): 162201

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