Open AccessAngular Goos-Hanchen shift in subwavelength gratings enhanced by surface plasmon resonance
Author(s) -
Nikolai I. Petrov,
В. А. Данилов,
B. A. Usievich
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 - 10.1088/1742-6596/2015/1/012108
Subject(s) - optics , grating , surface plasmon resonance , resonance (particle physics) , beam (structure) , ray , surface plasmon , gaussian beam , materials science , total internal reflection , light beam , plasmon , physics , optoelectronics , atomic physics , nanotechnology , nanoparticle
The angular Goos-Hanchen shift dependence on the subwavelength grating parameters and the incident Gaussian beam width is investigated theoretically. High sensitivity of the angular Goos-Hanchen shift to the incident angle of a light beam near the surface plasmon resonance is demonstrated. Splitting of the reflected beam into two angularly separated beams is shown for strongly focused beam incident at the surface plasmon resonance angle.