Chuyển đến nội dung chính

Bài đăng

Video Nổi bật

Switchable and tunable metamaterial absorber in THz frequencies

http://repository.vnu.edu.vn/handle/VNU_123/58329

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

Dang, H. L., Nguyen, V. D., Trinh, T. G., Vu, D. L., (2016). Switchable and tunable metamateria…

Bài đăng mới nhất

ncorporating Risk into Technical Efficiency via a Semiparametric Analysis: The Case of ASEAN Banks

Đường có quan hệ gì với béo phì?

Integration Mobile Technology into English Lessons: A case Study at VNU-ULIS and VNU-UED

Phổ đồ thị và ứng dụng

Polygonum multiflorum root extract as a potential candidate for treatment of early graying hair

Đặc điểm nước dâng bão vùng biển ven bờ biển Việt Nam

Hóa thạch Chân khớp (Arthropoda)

Vốn mạo hiểm - một tác nhân của nền kinh tế tri thức

Stress đối với phụ nữ công sở

Mối quan hệ giữa đạo Cao Đài và văn hóa Nam Bộ