Open AccessNumerical simulation of a plasmonic lens for laser light focusing
Author(s) -
Е. С. Козлова,
V. V. Kotlyar
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2103/1/012174
Subject(s) - plasmon , plasmonic lens , optics , lens (geology) , wavelength , polarization (electrochemistry) , materials science , finite difference time domain method , ray , laser , focal length , optoelectronics , surface plasmon , physics , surface plasmon polariton , chemistry
In this paper, the design of a plasmonic lens in gold and silver thin films for focusing the light with radial polarization is presented. Using the finite difference time domain method the optimal parameters of the plasmonic lens design are found. It was shown that the silver plasmonic lens produces a tight focal spot with a full width at half maximum of 0.38 of the incident light wavelength.