Abstract

A metamaterial structure consisting of a one-dimensional metal/air-gap subwavelength grating is investigated for optical antireflection for a germanium surface in the infrared regime. For incident light polarized perpendicularly to the metal grating lines, the metamaterial exhibits effective dielectric properties, and the Fabry–Perot-like resonance results in the elimination of the reflection and the enhancement of optical transmission. It is found that the subwavelength grating metamaterial antireflection structure does not require a deep-subwavelength grating period, which is advantageous for device fabrication. Optical transmittance as high as 93.4% with complete elimination of the reflection is shown in the midwave infrared range.

© 2015 Optical Society of America

Full Article  |  PDF Article
More Like This
Polarization-independent and omnidirectional nearly perfect absorber with ultra-thin 2D subwavelength metal grating in the visible region

Wenchao Zhou, Kaiwei Li, Chao Song, Peng Hao, Mingbo Chi, Muxin Yu, and Yihui Wu
Opt. Express 23(11) A413-A418 (2015)

Bilayer metallic nanofilms as broadband antireflection coatings in terahertz optical systems

Wei En Lai, Huai Wu Zhang, Yao Hua Zhu, Qi Ye Wen, Wei Wei Du, and Xiao Li Tang
Opt. Express 22(3) 2174-2184 (2014)

Hyperbolic metamaterial feasible for fabrication with direct laser writing processes

Xu Zhang, Sanjoy Debnath, and Durdu Ö. Güney
J. Opt. Soc. Am. B 32(6) 1013-1021 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation 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

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

Equations (4)

You do not have subscription access to this journal. Equations 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

Metrics

You do not have subscription access to this journal. Article level metrics 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