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- Title
Modeling of Subwavelength Gratings: Near-Field Behavior.
- Authors
Chernyavsky, Alexander; Bereza, Alexey; Frumin, Leonid; Shapiro, David
- Abstract
Subwavelength gratings have received considerable attention in the fields of photonics, optoelectronics, and image sensing. This paper presents simple analytical expressions for the near-field intensity distribution of radiation scattered by these gratings. Our proposed methodology employs a 2D point dipole model and a specialized version of perturbation theory. By validating our models via numerical techniques including boundary and finite element methods, we demonstrate their effectiveness, even for narrow slits.
- Subjects
BOUNDARY element methods; PERTURBATION theory; FINITE element method; PHOTONICS; RADIATION; ALGEBRAIC field theory
- Publication
Photonics, 2023, Vol 10, Issue 12, p1332
- ISSN
2304-6732
- Publication type
Article
- DOI
10.3390/photonics10121332