Advertisement
Published in:
06-02-2017
Broadband visible perfect absorber for sensor based on ultra-thin metamaterial
Published in: Journal of Materials Science: Materials in Electronics | Issue 11/2017
Log inActivate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Abstract
A metamaterial perfect absorber having a hybrid layer and total thickness of 50 nm is demonstrated in this paper. The results indicate that a broadband absorption above 90% is achieved from 421.2 to 671.8 THz and the absorption of 99.8% can be obtained at the absorption peaks. The absorption is also illustrated to be polarization insensitive under vertical incidence. Furthermore, the broadband and high-efficient absorption are sustained over a wide incident angle range. In addition, the impedance matching theory, surface current distributions, and power loss at the resonant frequencies are also discussed. Moreover, this study demonstrates the application of different permittivity on the performance of the sensor.