7 July 2023 Infrared anti-reflection film device for electromagnetic interference shielding
Kai Shi, Junhong Su, Miao Liu, Haifeng Liang, Junqi Xu, Shenjiang Wu
Author Affiliations +
Abstract

The infrared anti-reflection film is prepared by ion beam assisted thermal evaporation deposition technology. The film has good firmness and can meet the needs of wet transfer. By adjusting the number of layers of the graphene mesh, the electromagnetic shielding and optical transparency properties are simultaneously improved. The infrared anti-reflection film and graphene mesh are combined to design and prepare a compatible electromagnetic shielding infrared anti-reflection film device with sandwich structure. The test results of the device show that the peak transmittance of the graphene mesh/infrared film/substrate/infrared film combination structure in the 3 to 5 μm band is 95.06%, and the average transmittance is 93.40%. The peak shielding effectiveness (SE) in the 12 to 18 GHz frequency band is 14.50 dB, and the average SE is 12.98 dB. It shows that the film device of this structure maintains the high transmittance of the infrared anti-reflection film and has good electromagnetic shielding effectiveness.

© 2023 Society of Photo-Optical Instrumentation Engineers (SPIE)
Kai Shi, Junhong Su, Miao Liu, Haifeng Liang, Junqi Xu, and Shenjiang Wu "Infrared anti-reflection film device for electromagnetic interference shielding," Optical Engineering 62(7), 077101 (7 July 2023). https://doi.org/10.1117/1.OE.62.7.077101
Received: 11 April 2023; Accepted: 20 June 2023; Published: 7 July 2023
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KEYWORDS
Infrared radiation

Graphene

Transmittance

Electromagnetism

Antireflective coatings

Electromagnetic interference

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