Switchable and tunable metamaterial absorber in THz frequencies

We demonstrated a metamaterial absorber (MMA), which can be controlled by variation of conductivity or temperature. The metamaterial (MM) structure is based on three individual layers of periodic split ring resonator (SRR), a dielectric, and metallic film. The resonant frequency of the designed st...

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Main Authors: Dang, Hong Luu, Nguyen, Van Dung, Trinh, Thi Giang, Vu, Dinh Lam
Format: Article
Language:English
Published: ĐHQGHN 2017
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Online Access:http://repository.vnu.edu.vn/handle/VNU_123/58329
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Institution: Vietnam National University, Hanoi
Language: English
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spelling oai:112.137.131.14:VNU_123-583292018-07-12T04:23:45Z Switchable and tunable metamaterial absorber in THz frequencies Dang, Hong Luu Nguyen, Van Dung Trinh, Thi Giang Vu, Dinh Lam Switchable THz frequencies Tunable absorber We demonstrated a metamaterial absorber (MMA), which can be controlled by variation of conductivity or temperature. The metamaterial (MM) structure is based on three individual layers of periodic split ring resonator (SRR), a dielectric, and metallic film. The resonant frequency of the designed structure is numerically investigated at THz range of electromagnetic (EM) wave, which is explained by surface current and equivalent LC-circuit. It was found that by replacing the metallicfilm with VO2, the ab-sorption intensity can be controlled by modification of the conductivity through the optical pumping power, while the absorption frequency is tuned by changing the temperature of InSb materialfilled into two slits of SRR. It is expected that this work will allow switchable and tunable absorption behaviours for applications of MMA 2017-08-25T02:58:49Z 2017-08-25T02:58:49Z 2016 Article Dang, H. L., Nguyen, V. D., Trinh, T. G., Vu, D. L., (2016). Switchable and tunable metamaterial absorber in THz frequencies. Journal of Science: Advanced Materials and Devices, No. 1(2016), 65-68. 2468-2284 http://repository.vnu.edu.vn/handle/VNU_123/58329 en Journal of Science application/pdf ĐHQGHN
institution Vietnam National University, Hanoi
building VNU Library & Information Center
country Vietnam
collection VNU Digital Repository
language English
topic Switchable
THz frequencies
Tunable absorber
spellingShingle Switchable
THz frequencies
Tunable absorber
Dang, Hong Luu
Nguyen, Van Dung
Trinh, Thi Giang
Vu, Dinh Lam
Switchable and tunable metamaterial absorber in THz frequencies
description We demonstrated a metamaterial absorber (MMA), which can be controlled by variation of conductivity or temperature. The metamaterial (MM) structure is based on three individual layers of periodic split ring resonator (SRR), a dielectric, and metallic film. The resonant frequency of the designed structure is numerically investigated at THz range of electromagnetic (EM) wave, which is explained by surface current and equivalent LC-circuit. It was found that by replacing the metallicfilm with VO2, the ab-sorption intensity can be controlled by modification of the conductivity through the optical pumping power, while the absorption frequency is tuned by changing the temperature of InSb materialfilled into two slits of SRR. It is expected that this work will allow switchable and tunable absorption behaviours for applications of MMA
format Article
author Dang, Hong Luu
Nguyen, Van Dung
Trinh, Thi Giang
Vu, Dinh Lam
author_facet Dang, Hong Luu
Nguyen, Van Dung
Trinh, Thi Giang
Vu, Dinh Lam
author_sort Dang, Hong Luu
title Switchable and tunable metamaterial absorber in THz frequencies
title_short Switchable and tunable metamaterial absorber in THz frequencies
title_full Switchable and tunable metamaterial absorber in THz frequencies
title_fullStr Switchable and tunable metamaterial absorber in THz frequencies
title_full_unstemmed Switchable and tunable metamaterial absorber in THz frequencies
title_sort switchable and tunable metamaterial absorber in thz frequencies
publisher ĐHQGHN
publishDate 2017
url http://repository.vnu.edu.vn/handle/VNU_123/58329
_version_ 1680965178232930304