Abstract

Although epsilon-near-zero (ENZ) metamaterials offer many unconventional ways to play with light, the optical impedance mismatch with surroundings can limit the efficiency of future devices. We report here on the improvement of the transmittance of an ENZ wavefront shaper. In this Letter, we first address the way to enhance the transmittance of a plane wave through a layer of ENZ material, thanks to a numerical optimization approach based on the transfer matrix method. We then transpose the one-dimensional approach to a two-dimensional case where the emission of a dipole is shaped into a plane wave by an ENZ device with a design that optimizes the transmittance. As a result, we demonstrate a transmittance efficiency of 15% that is four orders of magnitude higher than previous devices proposed in the literature for wavefront shaping applications. This Letter aims to pave the way for future efficient ENZ devices by offering new strategies to optimize the transmittance through ENZ materials.

© 2016 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Electromagnetic properties of magnetic epsilon-near-zero medium with dielectric dopants

Lin Zhao, Yijun Feng, Bo Zhu, and Junming Zhao
Opt. Express 27(14) 20073-20083 (2019)

Wide-angle transmissions of electromagnetic fields through the sandwiched transparent epsilon-near-zero metamaterial screen

Rui Yang, Pei Yang, Yongchao Chen, Jiacheng Li, and Zhenya Lei
Opt. Lett. 43(1) 5-8 (2018)

Mu and epsilon near zero metamaterials for perfect coherence and new antenna designs

Jing Jing Yang, Yan Francescato, Stefan A Maier, Fuchun Mao, and Ming Huang
Opt. Express 22(8) 9107-9114 (2014)

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Figures (5)

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

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

Equations (3)

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

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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