Text

Switchable Multi-Functional VO2-Integrated Metamaterial Devices in the Terahertz Region

In this paper, we present a multi-functional terahertz metamaterial device based on the gold and vanadium dioxide (VO 2 ). Availing of the phase transition characteristic of VO 2 , the switchable performance between perfect absorption and broadband asymmetric transmission (AT) can be realized. When VO 2 acts like a metal, the proposed metamaterial device behaves as a selectively perfect absorber for linearly polarized lights. By transforming the phase of VO 2 into isolating state, broadband AT with high efficiencies over 90% can be achieved in the region from 1.5 THz to 2.5 THz. Moreover, perfect polarization conversion can be simultaneously realized associated with the AT effect. The Fabry-Pérot-like cavity model and the electric field distributions are employed to explain the physical mechanism of the above phenomena. Besides, the proposed metamaterial shows a high tolerance to the incident angle for achieving perfect absorption and broadband AT effect. Our designed device may provide a new avenue for developing multi-functional metamaterial devices in the THz region.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.39 No.18 September 15 2021

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 5864-5868

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

METAMATERIAL
POLARIZATION CONVERSION
PERFECT ABSORPTION
ASYMMETRIC TRANSMISSION (AT)
VANADIUM DIOXIDE (VO2)

Info Detail Spesifik

DOI: 10.1109/JLT.2021.3092952

Pernyataan Tanggungjawab

Yi Ren, Bin Tang

Versi lain/terkait

Lampiran Berkas

Komentar