| Autor: |
Yue Wang, Lisha Yue, Zijian Cui, Xiaoju Zhang, Xiang Zhang, YongQiang Zhu, Kuang Zhang |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
AIP Advances, Vol 10, Iss 4, Pp 045039-045039-7 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2158-3226 |
| DOI: |
10.1063/5.0003817 |
| Popis: |
In this work, we numerically demonstrated a single narrow band THz absorber based on cylindrically shaped periodical p-type doped silicon with excellent attributes, including polarization insensitivity and optical tunability. Good absorption characteristics were demonstrated at 0.57 THz with an absorption of nearly 99.75% and a quality factor of 11.278. Furthermore, its absorbance could be flexibly tuned from above 99% to less than 35% by changing the pump beam fluence from 0 µJ/cm2 to 3000 µJ/cm2. The demonstrated tunability may find potential applications in dynamic functional THz devices. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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