[1] [1] B Berge, J Peseux. Variable focal lens controlled by an external voltage: an application of electrowetting[J]. Eur Phys J E, 2000, 3(2): 159-163.

[2] [2] Yao Jianquan, Wang Ran, Miao Yinping, et al.. Novel photonic functional devices based on liquid-filling microstructured optical fibers[J]. Chinese J Lasers, 2013, 40(1): 0101002.

[3] [3] Li Qiang, Sun Licun, Meng Weidong, et al.. Refractive index of liquid measured by liquid-core zoom cylindrical lens[J]. Chinese J Lasers, 2013, 39(10): 1008005.

[4] [4] Wan Jing, Guo Anjin, Yan Feng, et al.. New optical attenuator based on microfluidic technology[J]. Acta Optica Sinica, 2014, 34(9): 0923001.

[5] [5] N R Smith, D C Abeysinghe, J W Haus, et al.. Agile wide-angle beam steering with electrowetting microprisms[J]. Opt Express, 2006, 14(14): 6557-6563.

[6] [6] Luo Duanbin, Yan Kun, She Weilong, et al.. All optical switch with response time in millisecond magnitude based on azo-doped polymer films[J]. Chinese J Lasers, 2004, 31(1): 92-96.

[7] [7] Yang Jianyi, Jiang Xiaoqing, Yang Fanghui, et al.. 2× 2 total-internal-reflection optical switch using thermo-optic effect of polymer[J]. Chinese J Lasers, 2003, 30(2): 137-140.

[8] [8] Xiong Caoshui, Xiong Yonghong, Zhao Tianpeng, et al.. An approach for optical switch property and mechanism of AgOx thin films[J]. Chinese J Lasers, 2002, 29(5): 436-438.

[9] [9] L Li, C Liu, Q H Wang. Optical switch based on tunable aperture[J]. Opt Lett, 2012, 37(16): 3306-3308.

[10] [10] R A Hayes, B J Feenstra. Video-speed electronic paper based on electrowetting[J]. Nature, 2003, 425(6956): 383-385.

[11] [11] H Ren, S Xu, D Ren, et al.. Novel optical switch with a reconfigurable dielectric liquid droplet[J]. Opt Express, 2011, 19(3): 1985-1990.

[12] [12] C U Murade, J M Oh, D V D Ende, et al.. Electrowetting driven optical switch and tunable aperture[J]. Opt Express, 2011, 19(16): 15525-15531.