Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Hybrid two-dimensional subwavelength surface-relief grating–mesh structures

Not Accessible

Your library or personal account may give you access

Abstract

The homogeneous behavior of periodic two-dimensional subwavelength surface-relief structures that contain both gratings and meshes (inverse gratings) are investigated. It is shown that when effective indices are synthesized near the higher index (substrate region), mesh structures yield larger feature sizes compared with their grating counterparts, whereas grating structures yield larger feature sizes when effective indices are synthesized near the lower index (incident region). For each type of structure investigated, a relation between the parameters of the structure and an effective refractive index is determined. It is shown that an equal area occupied by the high- or low-index media within the grating cell does not, in general, result in equal effective indices. The effective index of the grating is shown to be characterized by both the shape (local distribution) and the area of the high- or low-index medium within the unit grating cell. Finally, the advantages of subwavelength gratings and meshes are combined to produce hybrid grating–mesh structures that are less demanding on the fabrication process.

© 1996 Optical Society of America

Full Article  |  PDF Article
More Like This
Optimal design for antireflective tapered two-dimensional subwavelength grating structures

Eric B. Grann, M. G. Moharam, and Drew A. Pommet
J. Opt. Soc. Am. A 12(2) 333-339 (1995)

Artificial uniaxial and biaxial dielectrics with use of two-dimensional subwavelength binary gratings

Eric B. Grann, M. G. Moharam, and Drew A. Pommet
J. Opt. Soc. Am. A 11(10) 2695-2703 (1994)

Depth dependence of the effective properties of subwavelength gratings

Philippe Lalanne and Dominique Lemercier-Lalanne
J. Opt. Soc. Am. A 14(2) 450-459 (1997)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved