Study of doughnut beam with high charge number generated by liquid crystal plates

Jiping Ning; Lu Pang; Xiaobo Qi; Huafeng Zhao; Qun Han; Zhiqiang Chen; Guofang Fan; Lianju Shang

doi:10.1117/12.710924

27 October 2006 Study of doughnut beam with high charge number generated by liquid crystal plates

Jiping Ning, Lu Pang, Xiaobo Qi, Huafeng Zhao, Qun Han, Zhiqiang Chen, Guofang Fan, Lianju Shang

Proceedings Volume 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine; 60470C (2006) https://doi.org/10.1117/12.710924
Event: Fourth International Conference on Photonics and Imaging in Biology and Medicine, 2005, Tianjin, China

Abstract

The doughnut beams with charges of 1 to 3 are generated by one and stacking two and three Liquid crystal(LC) spiral phase plates with cell gaps of 7 μm respectively. Theoretically, any charge number can be obtained by the stacking method. High efficiency and flexibility are the advantages of generating doughnut beams by stacking liquid crystal spiral phase plates. The interference of doughnut beam generated by LC spiral phase plate and plane wave has been studied. The numerical simulation results agree with the experiment.

Citation Download Citation

Jiping Ning, Lu Pang, Xiaobo Qi, Huafeng Zhao, Qun Han, Zhiqiang Chen, Guofang Fan, and Lianju Shang "Study of doughnut beam with high charge number generated by liquid crystal plates", Proc. SPIE 6047, Fourth International Conference on Photonics and Imaging in Biology and Medicine, 60470C (27 October 2006); https://doi.org/10.1117/12.710924

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