A new absorber design using metamaterials for thermo photovoltaic applications is simulated here. Conventional absorbents normally have narrow band-widths and/or sensitive-polarization. Alternatively, the present study shows the possibility to find an infrared absorber structure with optimal characteristics involving a metal-dielectric. A combination of two resonators, circular cavity in a square metallic patch, laid on a dielectric substrate is proposed here. With this design, the results show that wide-band absorption can be achieved.  The absorption bandwidth can be widened from 57.2 to 95.4 THz, with absorption efficiency higher than 90%. This structure design is polarization-insensitive to incident electromagnetic wave angles. These new features make the new absorber potentially useful in thermo photovoltaic conversion applications.

Title

َََQuantum and Optical Electronics

Publisher

Springer

Publisher Country

United States of America

Indexing

Thomson Reuters

Impact Factor

1.055

Publication Type

Prtinted only

Volume

50

Year

2018

Pages

10