Realization of compatible stealth material for infrared, laser and radar based on one-dimensional doping-structure photonic crystals
| Autor: | Cheng-Ming Wang, Jia-Ming Shi, Qi-chao Wang, Dapeng Zhao, Ji-Kui Zhang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Materials science business.industry Infrared Far-infrared laser 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Laser 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Wavelength Optics law Infrared window 0103 physical sciences Reflection (physics) Optoelectronics Radar 0210 nano-technology business Photonic crystal |
| Zdroj: | Infrared Physics & Technology. 85:62-65 |
| ISSN: | 1350-4495 |
| DOI: | 10.1016/j.infrared.2017.05.018 |
| Popis: | To inhibit the radiant infrared energy between 8 and 14 μm, which is the infrared atmospheric window, and decrease the echo power of detecting laser and radar, to achieve compatible stealth, a doping structural one-dimensional photonic crystal (1-D PC) with Ge, ZnSe and Si was fabricated; and then combine it with radar absorbing material (RAM) to make a compound. After that, the reflection spectra of this compound was tested, and the result shows a high average reflectance (89.5%) in 8–14 μm waveband, and a reflective valley (39.8%) in the wavelength of 10.6 μm, which is the wavelength of CO2 laser; and the reflectance in radar band shows that at high frequency, especially between 7.8 and 18 GHz, the radar power is strongly absorbed by this material and the reflected energy attenuate over 10 dB within the range from 11.1 GHz to 18.3 GHz, even 24.5 dB to the most in the frequency of 14.6 GHz. |
| Databáze: | OpenAIRE |
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