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《Infrared and Laser Engineering》 2010-01
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New mid-infrared material and its radar stealth function

FAN You-yu1,2,YANG Yi1,3,JIANG Xiong-wei1,ZHANG Long1,2(1.The Key Laboratory of Material Science and Technology for High Power Laser,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;2.Graduate School of the Chinese Academy of Sciences,Beijing 100039,China;3.The 613th Research Institute of Aviation Industry Corporation of China,Luoyang 471009,China)  
With the fast development of the infrared technology and electro-optical countermeasure technique,the infrared windows capable of radar stealth and Electro-Magnetic Shielding(EMS) are essentially required.A new kind of mid-infrared optical glass,oxy-fluoride gallate glass,namely IRG-05 was introduced.And a mid-infrared material,with the capacity of radar stealth based on IRG-05 substrate,was prepared successfully.Compared with the traditional material made infrared windows with periodical metal grid prepared on the surface by coating and lithography,the new radar stealth mid-infrared optical material had higher transmission in the 3-5 μm band as well as much more stable metal grid.The growing trends of the radar stealth IR-transparent materials were also discussed.IR composite materials with the capacity of Radar stealth and EMS,prepared by IR-crystal and IR-glass combination,were showing great potentiality.Metal grid induced by the super-high-power ultrafast laser in the IR-glass is another promising approach.
【Fund】: 国家自然科学基金资助项目(50802103);; 上海市优秀学科带头人资助项目(10XD1404600);; 航空科学基金资助项目(2009ZF13001)
【CateGory Index】: TN213
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