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

doi:10.1117/12.2587702

2 December 2020 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, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics; 117173R (2020) https://doi.org/10.1117/12.2587702
Event: 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 2020, Shanghai, China

Abstract

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.

Citation Download Citation

Le Zhu, Jiajie Wang, Hanghang Zhang, Tong Zhang, Jirong Guo, Yiping Han, and Paul Briard "Photonic jet generated by a dielectric spheroid with Bessel beam excitation", Proc. SPIE 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 117173R (2 December 2020); https://doi.org/10.1117/12.2587702

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