Design and realization of one-dimensional double hetero-structure photonic crystals for infrared-radar stealth-compatible materials applications

In this paper, a new type one-dimensional (1D) double hetero-structure composite photonic crystal (CPC) for infrared-radar stealth-compatible materials applications was proposed and studied numerically and experimentally. First, based on transfer matrix method of thin-film optical theory, the propag...

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Published inJournal of applied physics Vol. 116; no. 5
Main Authors Wang, Zhixun, Cheng, Yongzhi, Nie, Yan, Wang, Xian, Gong, Rongzhou
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 07.08.2014
Subjects
Applied physics
Broadband
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Compatibility
Construction materials
Crystal structure
CRYSTALS
DESIGN
EMISSIVITY
GERMANIUM
Infrared radar
LAYERS
MATERIALS
Mathematical analysis
ONE-DIMENSIONAL CALCULATIONS
Photonic crystals
RADAR
Reflectance
REFLECTIVITY
Stealth technology
THICKNESS
THIN FILMS
TRANSFER MATRIX METHOD
WAVELENGTHS
Zinc sulfide
ZINC SULFIDES
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Summary:In this paper, a new type one-dimensional (1D) double hetero-structure composite photonic crystal (CPC) for infrared-radar stealth-compatible materials applications was proposed and studied numerically and experimentally. First, based on transfer matrix method of thin-film optical theory, the propagation characteristics of the proposed structure comprising a stack of different alternating micrometer-thick layers of germanium and zinc sulfide were investigated numerically. Calculation results exhibit that this 1D single hetero-structure PC could achieve a flat high reflectivity gradually with increasing the number of the alternating media layers in a single broadband range. Then, based on principles of distributed Bragg reflector micro-cavity, a 1D double hetero-structure CPC comprising four PCs with thickness of 0.797 μm, 0.592 μm, 1.480 μm, and 2.114 μm, respectively, was proposed. Calculation results exhibit that this CPC could achieve a high reflectance of greater than 0.99 in the wavelength ranges of 3–5 μm and 8–14 μm and agreed well with experiment. Further experiments exhibit that the infrared emissivity of the proposed CPC is as low as 0.073 and 0.042 in the wavelength ranges of 3–5 μm and 8–12 μm, respectively. In addition, the proposed CPC can be used to construct infrared-radar stealth-compatible materials due to its high transmittance in radar wave band.
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ISSN:0021-8979
1089-7550
DOI:10.1063/1.4892088