Acta Photonica Sinica, Volume. 51, Issue 12, 1223001(2022)
Study on Photonic Nanojet of Bilayer Micropyramid Structure Coupled with Spatial Light Modulation
Figures & Tables(9)
Fig. 1. Schematic of liquid crystal molecules orientation along xyz planes under an external power
Fig. 2. Schematic of a micropyramid structure filled with liquid crystals producing PNJ
Fig. 3. Distribution of light fields at different liquid crystal deflection angles
Fig. 5. The effect of the different liquid crystal rotation angle
Fig. 6. Lateral distribution at the focal point of the PNJ corresponding to different
Fig. 7. Result of the light field distribution produced by the microstructure without liquid crystal
Table 1. The first and second focal lengths corresponding to different
Table 1. The first and second focal lengths corresponding to different
0° 20° 40° 50° 60° 80° f1/ 9.3 9.3 9.3 12.2 12.2 12.3 f2/ 24.4 24.4 24.5 24.6 24.6 24.8
Table 2. The focusing efficiency and half-height full width of the two focal points corresponding to different
Table 2. The focusing efficiency and half-height full width of the two focal points corresponding to different
20° 40° 60° 80° f1 focus efficiency 29.4% 31.5% 35.3% 40.1% FWHM1 0.89λ 0.90λ 1.04λ 1.23λ f2 focus efficiency 16.9% 28.5% 35.3% 43.2% FWHM2 0.90λ 0.97λ 1.01λ 1.19λ
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Zehua SUN, Weiguo LIU, Shaobo GE, Bingcai LIU, Chunfang WU, Yingxue XI. Study on Photonic Nanojet of Bilayer Micropyramid Structure Coupled with Spatial Light Modulation[J]. Acta Photonica Sinica, 2022, 51(12): 1223001
Paper Information
Category: Optical Device
Received: May. 10, 2022
Accepted: Sep. 19, 2022
Published Online: Feb. 6, 2023
The Author Email: Weiguo LIU (wgliu@163.com)
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