Enhancement of transverse magneto-optical Kerr effects and high sensing performance in a trilayer structure with nanopore arrays

Autor: Yao Lu, Weiwei Zhang, Haishuai Chai
Rok vydání: 2021
Předmět:
Zdroj: Results in Physics, Vol 31, Iss, Pp 105049-(2021)
ISSN: 2211-3797
DOI: 10.1016/j.rinp.2021.105049
Popis: The transverse magneto-optical Kerr effects (T-MOKEs) and sensing performance in a magneto-optical surface plasmon resonance (MOSPR) structure comprising a nanoporous gold/Co6Ag94 bilayer with a square-subwavelength period on a gold slab are theoretically investigated. Benefiting from the excitation of the surface plasmon resonance by optimizing the related parameters of the proposed MOSPR structure, we obtain a magnified T-MOKE signal with a high sensing performance in a gas environment. In this system, a sharp Fano-like T-MOKE spectrum with a narrow linewidth and a high amplitude is achieved. This strategy is important for obtaining new classes of detectors for monitoring air quality.
Databáze: OpenAIRE