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Abstract

We numerically demonstrate a kind of tapered hollow silver waveguide for optically guiding and focusing of light through finite-difference time-domain (FDTD) simulations. The results of numerical simulation reveal that the tapered hollow silver waveguide can efficiently guide and focus a laser light to a tiny, highly localized beam spot of 1 μm diameter. The physical mechanism of the cone-focused laser light is explored. The influence of incident angle and waveguide geometry on the focusing properties is also discussed. The results obtained here might have important reference value for applications in tapered optics, and designing the optimum cone shape for fast ignition and generating high energy charged particles.

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Zeng Xia-Hui¹,
Fan Dian-Yuan²

References

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Cited By

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[1]	He Xin-Bo, Wei Bing.Explicit and unconditionally stable finite-difference time-domain subgridding algorithm based on hanging variables. Acta Physica Sinica, 2024, 73(8): 080202.doi:10.7498/aps.73.20231813
[2]	Wang Bo-Yun, Zhu Zi-Hao, Gao You-Kang, Zeng Qing-Dong, Liu Yang, Du Jun, Wang Tao, Yu Hua-Qing.Plasmon induced transparency effect based on graphene nanoribbon waveguide side-coupled with rectangle cavities system. Acta Physica Sinica, 2022, 71(2): 024201.doi:10.7498/aps.71.20211397
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[4]	.Plasmon induced transparency effect based on graphene nanoribbon waveguide side–coupled with rectangle cavities system. Acta Physica Sinica, 2021, (): .doi:10.7498/aps.70.20211397
[5]	Yang Hong-Wei, Meng Shan-Shan, Gao Ran-Ran, Peng Shuo.Analysis of photonic crystal transmission properties by the precise integration time domain. Acta Physica Sinica, 2017, 66(8): 084101.doi:10.7498/aps.66.084101
[6]	Lu Nai-Yan, Yu Xue-Jian, Wan Jia-Wei, Weng Yu-Yan, Guo Jun-Hong, Liu Yu.Surface plasmon resonance coupling effect of micro-patterned gold film. Acta Physica Sinica, 2016, 65(20): 208102.doi:10.7498/aps.65.208102
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[8]	Chen Can, Tong Ya-Jun, Xie Hong-Lan, Xiao Ti-Qiao.Study of the focusing properties of Laue bent crystal by ray-tracing. Acta Physica Sinica, 2012, 61(10): 104102.doi:10.7498/aps.61.104102
[9]	Ding Shuai, Wang Bing-Zhong, Ge Guang-Ding, Wang Duo, Zhao De-Shuang.Influential factors of time reversal Mirror on focusing property of time-reversed electromagnetic wave. Acta Physica Sinica, 2011, 60(10): 104101.doi:10.7498/aps.60.104101
[10]	Liu Guang-Dong, Zhang Ye-Rong.Time-domain inverse scattering problem for two-dimensional frequency-dispersive lossy media. Acta Physica Sinica, 2010, 59(10): 6969-6979.doi:10.7498/aps.59.6969
[11]	Lü Jun, Zhao Zheng-Yu, Zhang Yuan-Nong, Zhou Chen.Influence of nonlinearity on focused acoustic field of array in atmosphere. Acta Physica Sinica, 2010, 59(12): 8662-8668.doi:10.7498/aps.59.8662
[12]	Wei Bing, Dong Yu-Hang, Wang Fei, Li Cun-Zhi.A modificatory algorithm for electrically thin dispersive layers base on shift operator finite-difference time-domain method. Acta Physica Sinica, 2010, 59(4): 2443-2450.doi:10.7498/aps.59.2443
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[15]	Fu Jia-Hui, Meng Fan-Yi, Yang Guo-Hui, Wu Qun, Liu Xin-Lei.The research of left-handed material using unsplit FDTD method. Acta Physica Sinica, 2008, 57(7): 4070-4075.doi:10.7498/aps.57.4070
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[17]	.Using finite-difference time-domain method to realize computer simulation of strut. Acta Physica Sinica, 2007, 56(12): 6924-6930.doi:10.7498/aps.56.6924
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[19]	Zhang Bo.Absorbing boundary conditions for two-dimensional photonic crystal waveguides. Acta Physica Sinica, 2005, 54(12): 5677-5682.doi:10.7498/aps.54.5677
[20]	Wang Gang, Wen Ji-Hong, Han Xiao-Yun, Zhao Hong-Gang.Finite difference time domain method for the study of band gap in two-dimensiona l phononic crystals. Acta Physica Sinica, 2003, 52(8): 1943-1947.doi:10.7498/aps.52.1943

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Vol. 59, Issue 9 - 2010-05-05

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