Terahertz Metamaterials for Linear Polarization Conversion and Anomalous Refraction

Author:

Grady Nathaniel K.1,Heyes Jane E.1,Chowdhury Dibakar Roy1,Zeng Yong2,Reiten Matthew T.1,Azad Abul K.1,Taylor Antoinette J.1,Dalvit Diego A. R.2,Chen Hou-Tong1

Affiliation:

1. Center for Integrated Nanotechnologies, MS K771, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.

2. Theoretical Division, MS B213, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.

Abstract

Converting Polarization The conversion of a light signal from one polarization direction to another plays an important role in communication and metrology. The components that are presently used for polarization conversion, however, tend to be relatively large, which is an issue that can make it difficult to integrate with chip-scale optoelectronic circuits. Grady et al. (p. 1304 , published online 16 May) used a metasurfaces approach involving a designed array of cut wires to manipulate the polarization state of the propagating terahertz signals. Proper design of the device structure allowed for the control of the polarization conversion state for both reflected and transmitted light over a broad frequency range.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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