Huiling Liu, Xingxing Han, Bei Zhao, Jing Shi, Le Zhu
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引用次数: 0
Abstract
To analyze the influence of eccentricity and the properties of a focused beam on the features of photonic jets (PJs) formed by an eccentrically coated sphere, light scattering of an eccentrically coated sphere illuminated by a focused Gaussian beam is investigated by using the generalized Lorenz-Mie theory. Variations of internal and near-surface field distributions are calculated with the change of the core locations inside of the particle. Numerical results concerning the behaviors of PJs, including the position of maximum intensity, focal distance, value of peak intensity, and transversal dimension of PJ expressed by full width half maximum (FWHM), are presented. The results show that by properly tuning the location of core, the PJ parameters can be efficiently engineered. The PJs can also be further adjusted by varying the beam waist radius of the incident Gaussian beam, which provide an extra way to adjust the PJ patterns for a particle with fixed structure.
期刊介绍：
Papers with the following subject areas are suitable for publication in the Journal of Quantitative Spectroscopy and Radiative Transfer:
- Theoretical and experimental aspects of the spectra of atoms, molecules, ions, and plasmas.
- Spectral lineshape studies including models and computational algorithms.
- Atmospheric spectroscopy.
- Theoretical and experimental aspects of light scattering.
- Application of light scattering in particle characterization and remote sensing.
- Application of light scattering in biological sciences and medicine.
- Radiative transfer in absorbing, emitting, and scattering media.
- Radiative transfer in stochastic media.
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