| Citation: | ZHAO Hong-chao, LIU Chang, ZHOU Wen-ke, ZHU Han-bin, CHEN Wen-duo. Study of bonding layer for integrated structure of space gravitational wave detector telescope[J]. Chinese Optics, 2025, 18(3): 715-724. doi: 10.37188/CO.EN-2024-0025
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To detect space gravitational waves in the extremely low-frequency band, the telescope and optical platform require high stability and reliability. However, the cantilevered design presents challenges, especially in the glass-metal hetero-bonding process. This study focuses on the analysis and experimental research of the bonding layer in the integrated structure. By optimizing the structural configuration and selecting suitable bonding processes, the reliability of the telescope system is enhanced. The research indicates that using J-133 adhesive achieves the best performance, with a bonding layer thickness of 0.30 mm and a metal substrate surface roughness of Ra 0.8. These findings significantly enhance the reliability of the optical system while minimizing potential risks.
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