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Recently, the high-throughput radiation protection materials and technology research group led by Wang Pengfei, a researcher in the Photonic Functional Materials and Devices Laboratory of the Xi'an Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, has developed a wide-spectrum high-efficiency electromagnetic shielding optical window element
.
The average value of electromagnetic shielding effectiveness of this optical window component in the range of 1-18 GHz is >50 dB, its visible light-near infrared transmittance is >80%, and the component size can reach more than 350 mm
Electromagnetic shielding optical windows are the core functional parts of electronic instrument display screens, aircraft and vehicle windows, photoelectric detector systems, etc.
, to ensure the normal operation of optoelectronic instruments and equipment in the microwave and electromagnetic pulse radiation environment
.
Compared with optical shielding windows that generally use periodic grids, this product has higher light transmittance and higher electromagnetic shielding efficiency, which can effectively reduce the high-order diffraction of light, and can meet high-quality optical imaging on the basis of wide-band strong electromagnetic shielding guarantee Application requirements; and the process of preparing large-size shielded light windows is simpler and the production cost is relatively low
The research work is supported by the independent subordinate project of the Aerospace Technology Department and the Basic Research Department of Xi’an Institute of Optics and Mechanics.
Electromagnetic shielding optical window element
Transmittance spectrum curve
Electromagnetic shielding effectiveness curve