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

Blazed binary subwavelength gratings with efficiencies larger than those of conventional échelette gratings

Not Accessible

Your library or personal account may give you access

Abstract

We introduce a new structural cutoff beyond which subwavelength gratings cease to behave as homogeneous media and discuss its effects on the proper selection of the sampling periods of subwavelength diffractive elements. According to this analysis, a 3λ-period blazed binary grating composed of square pillars is designed for He–Ne operation and is fabricated by etching of a TiO2 layer deposited upon a glass substrate. Its first-order measured diffraction efficiency is 12% larger than the theoretical efficiency of an ideal blazed échelette grating in glass with the same period.

© 1998 Optical Society of America

Full Article  |  PDF Article
More Like This
High-efficiency subwavelength diffractive element patterned in a high-refractive-index material for 633??nm

Simion Astilean, Philippe Lalanne, Pierre Chavel, Edmond Cambril, and Huguette Launois
Opt. Lett. 23(7) 552-554 (1998)

Design and fabrication of blazed binary diffractive elements with sampling periods smaller than the structural cutoff

Philippe Lalanne, Simion Astilean, Pierre Chavel, Edmond Cambril, and Huguette Launois
J. Opt. Soc. Am. A 16(5) 1143-1156 (1999)

Blazed-binary diffractive elements with periods much larger than the wavelength

Mane-Si Laure Lee, Philippe Lalanne, and Pierre Chavel
J. Opt. Soc. Am. A 17(7) 1250-1255 (2000)

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 (2)

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