Chinese Optics Letters, Volume. 18, Issue 8, 080008(2020)

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

Yuan Zhang1, Bingyan Wei1、*, Sheng Liu1, Peng Li1, Xin Chen1, Yunlong Wu2, Xian’an Dou2, and Jianlin Zhao1、**
Author Affiliations
  • 1MOE 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
  • 2State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei 230037, China
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    Figures & Tables(4)
    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.
    Optical setup for the generation and modulation of CABs.
    (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.
    (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

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    Paper Information

    Special Issue: SPECIAL ISSUE ON SOFT-MATTER PHOTONICS

    Received: Jun. 20, 2020

    Accepted: Jul. 17, 2020

    Published Online: Aug. 6, 2020

    The Author Email: Bingyan Wei (wbyxz@nwpu.edu.cn), Jianlin Zhao (jlzhao@nwpu.edu.cn)

    DOI:10.3788/COL202018.080008

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