TERAHERTZ METAMATERIAL MODULATORS BASED ON ABSORPTION | Zendy

Hao Zhou | Zendy; Fei Ding | Zendy; Yi Jin | Zendy; Sailing He | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

TERAHERTZ METAMATERIAL MODULATORS BASED ON ABSORPTION

Author(s) -

Hao Zhou,

Fei Ding,

Yi Jin,

Sailing He

Publication year - 2011

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier11061304

Subject(s) - metamaterial , terahertz radiation , materials science , absorption (acoustics) , metamaterial absorber , optoelectronics , terahertz metamaterials , tunable metamaterials , optics , physics , composite material , far infrared laser , laser

Metamaterial absorbers can perfectly absorb an incident wave in a narrow frequency band. In this paper, metamaterial absorbers are used to construct a terahertz modulator. By controlling the carrier density in the n-doped semiconductor spacer between a patterned metallic superstructure and a metallic ground with different applied voltage bias, the absorption varies sensitively, and the reflected wave amplitude acting as the modulated signal can be strongly modulated. Two types of modulators are investigated, one of which possesses an array of metallic crosses as the superstructure, and the other has a complementary superstructure. Compared with the former, the latter may give a better modulation performance.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research