Circular Airy beams realized via the photopatterning of liquid crystals [Invited]

Yuan Zhang; Bingyan Wei; Sheng Liu; Peng Li; Xin Chen; Yunlong Wu; Xian’an Dou; Jianlin Zhao

doi:doi:10.3788/COL202018.080008

Chinese Optics Letters, 2020, 18 (8): 080008, Published Online: Aug. 6, 2020

Circular Airy beams realized via the photopatterning of liquid crystals [Invited] Download： 732次

Yuan Zhang ¹Bingyan Wei ^1,*Sheng Liu ¹Peng Li ¹Xin Chen ¹Yunlong Wu ²Xian’an Dou ²Jianlin Zhao ^1,**

Author Affiliations

¹ MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an 710129, China

² State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China

Figures & Tables

Fig. 1. Patterns of the (a) linear phase, (b) cubic phase, and (c) superimposed phase, where black to white indicates 0 to $2 π$ . (d) Micrograph of the LC CAP with an inset showing the zoom-in image of the central part marked by the dashed lines. The scale bar is 100 μm.

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Fig. 2. Optical setup for the generation and modulation of CABs.

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Fig. 3. (a) Experimental and (b) simulated autofocusing dynamics of the CAB. Blue circles in (a) represent the measured radius or the transverse deflection of the CAB, and the red lines are parabolic fit curves. The inserted transverse profiles are detected at $z = 10$ , 20, 30, 40, 50, 60, and 74 cm, respectively.

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Fig. 4. (a)–(e) Intensity distributions of the defocusing CABs at $z = 0$ , 20 40, 60, and 74 cm, (f) autofocusing CAB at $z = 74 cm$ by changing the incident polarization from RCP to LCP, and (g) transformed Bessel beam at $z = 90 cm$ . The insets in (f) and (g) are the zoom-in images of the central parts. (h) Detected OFF state of the CAB at $z = 74 cm$ when the applied voltage is tuned to meet the full-wave condition. The scale bars in (a) and the insets of (f)–(h) indicate 500 μm and 200 μm, respectively.

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Yuan Zhang, Bingyan Wei, Sheng Liu, Peng Li, Xin Chen, Yunlong Wu, Xian’an Dou, Jianlin Zhao. Circular Airy beams realized via the photopatterning of liquid crystals [Invited][J]. Chinese Optics Letters, 2020, 18(8): 080008.

Circular Airy beams realized via the photopatterning of liquid crystals [Invited] Download： 732次

Fig. 1. Patterns of the (a) linear phase, (b) cubic phase, and (c) superimposed phase, where black to white indicates 0 to $2 π$ . (d) Micrograph of the LC CAP with an inset showing the zoom-in image of the central part marked by the dashed lines. The scale bar is 100 μm.

Fig. 2. Optical setup for the generation and modulation of CABs.

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Circular Airy beams realized via the photopatterning of liquid crystals [Invited] Download： 732次

Fig. 1. Patterns of the (a) linear phase, (b) cubic phase, and (c) superimposed phase, where black to white indicates 0 to 2π. (d) Micrograph of the LC CAP with an inset showing the zoom-in image of the central part marked by the dashed lines. The scale bar is 100 μm.

Fig. 2. Optical setup for the generation and modulation of CABs.

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Fig. 1. Patterns of the (a) linear phase, (b) cubic phase, and (c) superimposed phase, where black to white indicates 0 to $2 π$ . (d) Micrograph of the LC CAP with an inset showing the zoom-in image of the central part marked by the dashed lines. The scale bar is 100 μm.