Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 33, Issue 24, Pages 1351-1354Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2021.3119331
Keywords
Optical polarization; Absorption; Photovoltaic cells; Hidden Markov models; Hafnium; Metasurfaces; Plasmons; Hyperbolic metamaterials; absorbers
Funding
- Universiti Kebangsaan Malaysia (UKM) [GUP-2018-157]
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By investigating the absorber composed of periodically arranged hafnium nitride nanodisks, it was found to exhibit high ultrawideband absorption and polarization insensitivity. The proposed HMM structure has potential applications in enhancing solar cell efficiency and other optical applications.
Hyperbolic metamaterial (HMM) based absorber comprising metasurface having periodically arranged hafnium nitride nanodisks was investigated. The constitutive and absorption properties of the structure were evaluated considering different parametric and operational conditions. Both the TE- and TM-incidence waves were studied along with different incidence and polarization angles. Using the finite integration technique, the absorber was found to exhibit high (polarization insensitive) ultrawideband absorption. With such features, the proposed HMM has prospects in developing plasmonic devices to enhance solar cell efficiency and other optical applications.
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