Micro-patterned liquid crystal Pancharatnam–Berry axilens

Jiarui Ren; Weichang Wang; Weiqiang Yang; Conglong Yuan; Kang Zhou; Xiao Li; Alwin Mingwai Tam; Cuiling Meng; Jiatong Sun; Vladimir G. Chigrinov; Hoising Kwok; Xiaoqian Wang; Zhigang Zheng; Dong Shen

doi:10.3788/COL201816.062301

Journals >Chinese Optics Letters >Volume 16 >Issue 6 >Page 062301 > Article

Chinese Optics Letters
Vol. 16, Issue 6, 062301 (2018)

Micro-patterned liquid crystal Pancharatnam–Berry axilens

Jiarui Ren¹, Weichang Wang¹, Weiqiang Yang¹, Conglong Yuan¹, Kang Zhou¹, Xiao Li¹, Alwin Mingwai Tam^1、2、4, Cuiling Meng², Jiatong Sun³, Vladimir G. Chigrinov², Hoising Kwok², Xiaoqian Wang^1、*, Zhigang Zheng¹, and Dong Shen¹

Author Affiliations

¹Physics Department, East China University of Science and Technology, Shanghai 200237, China

²ECE Department, Hong Kong University of Science and Technology, Hong Kong 999077, China

³College of Information Science and Technology, Donghua University, Shanghai 201620, China

⁴E-mail: amwtam@ust.hk

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DOI: 10.3788/COL201816.062301 Cite this Article Set citation alerts

Jiarui Ren, Weichang Wang, Weiqiang Yang, Conglong Yuan, Kang Zhou, Xiao Li, Alwin Mingwai Tam, Cuiling Meng, Jiatong Sun, Vladimir G. Chigrinov, Hoising Kwok, Xiaoqian Wang, Zhigang Zheng, Dong Shen. Micro-patterned liquid crystal Pancharatnam–Berry axilens[J]. Chinese Optics Letters, 2018, 16(6): 062301 Copy Citation Text

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Schematics of (a) the photo-patterning system and (b) the configuration of the LC PBAL and the designed director distributions for (c) PBAL-I (m=0), (d) PBAL-II (m=1), and (e) PBAL-III (m=−1). The white scale bars represent 100 μm.

Fig. 1. Schematics of (a) the photo-patterning system and (b) the configuration of the LC PBAL and the designed director distributions for (c) PBAL-I (m=0), (d) PBAL-II (m=1), and (e) PBAL-III (m=−1). The white scale bars represent 100 μm.

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Micrographs of (a) PBAL-I (m=0), (b) PBAL-II (m=1), (c) PBAL-III (m=−1) under the POM and (d) the experiment setup for characterizing the PBALs with identical aperture size (ϕ=1.2 mm). The yellow scale bars represent 100 μm.

Fig. 2. Micrographs of (a) PBAL-I (m=0), (b) PBAL-II (m=1), (c) PBAL-III (m=−1) under the POM and (d) the experiment setup for characterizing the PBALs with identical aperture size (ϕ=1.2 mm). The yellow scale bars represent 100 μm.

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$Comparisons of the diffraction properties of the three PBALs. The diagrams of D versus L for three PBALs under (a) the LCP and (b) RCP incident lights. The insertions in (a) and (b) indicate the mutually reversed phase profiles for corresponding director distributions under different circularly polarized lights. The diffraction patterns for (c) PBAL-I (m=0), (d) PBAL-II (m=1), and (e) PBAL-III (m=−1) under (I–V) LCP and (i–v) RCP incident lights at representative distances are shown.$

Fig. 3. Comparisons of the diffraction properties of the three PBALs. The diagrams of D versus L for three PBALs under (a) the LCP and (b) RCP incident lights. The insertions in (a) and (b) indicate the mutually reversed phase profiles for corresponding director distributions under different circularly polarized lights. The diffraction patterns for (c) PBAL-I (m=0), (d) PBAL-II (m=1), and (e) PBAL-III (m=−1) under (I–V) LCP and (i–v) RCP incident lights at representative distances are shown.

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$Voltage-dependent diffraction efficiencies of the three PBALs under the LCP and RCP incident lights. The insertions show the EO performance and response of the fabricated LC cell.$

Fig. 4. Voltage-dependent diffraction efficiencies of the three PBALs under the LCP and RCP incident lights. The insertions show the EO performance and response of the fabricated LC cell.

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