Mr. Le Zhu Profile

Le Zhu

at Xidian Univ

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Proceedings Article | 2 December 2020 Paper

Photonic jet generated by a dielectric spheroid with Bessel beam excitation

Le Zhu, Jiajie Wang, Hanghang Zhang, Tong Zhang, Jirong Guo, Yiping Han, Paul Briard

Proceedings Volume 11717, 117173R (2020) https://doi.org/10.1117/12.2587702

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Using the Finite-Difference Time-Domain method (FDTD), the properties of the three-dimensional photonic jet generated by the spheroidal particles illuminated by a Bessel beam are studied. The internal and near-field spatial distributions with the change of the ellipticity of the micro-spheroid are investigated for the cases of Bessel beams with different polarizations. The simulation results show that by varying the ellipticity and the polarization of Bessel beam, it is possible to obtain localized photon fluxes having different power characteristics and spatial dimensions. This can be of interest for several applications, such as ultramicroscopy, nanolithography, low-loss coupled resonance waveguides.

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