Publication Date

5-28-2018

Department

Ames Laboratory; Physics and Astronomy

Campus Units

Ames Laboratory, Physics and Astronomy

Report Number

IS-J 9687

DOI

10.1364/OE.26.014241

Journal Title

Optics Express

Volume Number

26

Issue Number

11

First Page

14241

Last Page

14250

Abstract

The nonlinear metamaterials have been shown to provide nonlinear properties with high nonlinear conversion efficiency and in a myriad of light manipulation. Here we study terahertz generation from nonlinear metasurface consisting of single layer nanoscale split-ring resonator array. The terahertz generation due to optical rectification by the second-order nonlinearity of the split-ring resonator is investigated by a time-domain implementation of the hydrodynamic model for electron dynamics in metal. The results show that the nonlinear metasurface enables us to generate broadband terahertz radiation and free from quasi-phase-matching conditions. The proposed scheme provides a new concept of broadband THz source and designing nonlinear plasmonic metamaterials.

Language

en

Department of Energy Subject Categories

36 MATERIALS SCIENCE; 42 ENGINEERING

Publisher

Iowa State University Digital Repository, Ames IA (United States)

Available for download on Tuesday, May 28, 2019

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