Ultrafast tunable integrated Faraday isolator based on optical pumping in a graphene–InSb–graphene structure
| Autor: | Amir Hossein Kazemi, Mehdi Zamani, Arash Mokhtari |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Optical isolator Terahertz radiation business.industry Graphene Nanophotonics 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Optical pumping Optics law 0103 physical sciences Transmittance Electrical and Electronic Engineering Faraday cage business Engineering (miscellaneous) Photonic crystal |
| Zdroj: | Applied Optics. 59:7745 |
| ISSN: | 2155-3165 1559-128X |
| Popis: | We have designed a new class of single-stage Faraday isolators that employs two sheets of graphene. Using nonreciprocal optical materials such as InSb boosts plasmonic coupling between the graphene layers, which leads to a 45 deg polarization rotation as well as increased transmission through the structure. More than 91% transmission is achieved in the THz band (1 THz–7 THz). This design opens up the way in ultrafast integrated magneto-optical nanophotonic devices to realize single-stage isolators with enhanced transmittance in the THz band. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|