title: Optimization of enhanced absorption in 3D-woodpile metallic photonic crystals.
abstract: We present a detailed theoretical analysis which reveals a useful insight to understand the resonant dissipative behavior of 3D woodpile metallic photonic crystals in the spectral response. We observe that a small amount of structural parameter modifications can induce great flexibility to alter the properties of the absorption resonance with even an extremely narrow band width of ~13 nm. Analyzing the dispersive properties of the 3D woodpile metallic photonic crystals and performing thorough numerical simulations for the finite number of layers we found that the magnitude, band width, and tunability of enhanced absorption can be easily optimized, which can be of significance to design an efficient photonic crystal thermal emitter.
authors.affiliation: Centre for Micro-Photonics and CUDOS, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia.
authors.forename: Md Muntasir
authors.initials: MM
authors.lastname: Hossain
authors.forename: Gengyan
authors.initials: G
authors.lastname: Chen
authors.forename: Baohua
authors.initials: B
authors.lastname: Jia
authors.forename: Xue-Hua
authors.initials: XH
authors.lastname: Wang
authors.forename: Min
authors.initials: M
authors.lastname: Gu