title: Parallel LC circuit model for multi-band absorption and preliminary design of radiative cooling.
abstract: We perform a comprehensive analysis of multi-band absorption by exciting magnetic polaritons in the infrared region. According to the independent properties of the magnetic polaritons, we propose a parallel inductance and capacitance(PLC) circuit model to explain and predict the multi-band resonant absorption peaks, which is fully validated by using the multi-sized structure with identical dielectric spacing layer and the multilayer structure with the same strip width. More importantly, we present the application of the PLC circuit model to preliminarily design a radiative cooling structure realized by merging several close peaks together. This omnidirectional and polarization insensitive structure is a good candidate for radiative cooling application.
authors.forename: Rui
authors.initials: R
authors.lastname: Feng
authors.forename: Jun
authors.initials: J
authors.lastname: Qiu
authors.forename: Linhua
authors.initials: L
authors.lastname: Liu
authors.forename: Weiqiang
authors.initials: W
authors.lastname: Ding
authors.forename: Lixue
authors.initials: L
authors.lastname: Chen