Research on ion beam figuring method based on new controllable ion source

Guangqi Zhou; Ye Tian; Feng Shi; Gang Zhou; Yongbin Wang; Yongxiang Shen; Zhe Zeng

doi:10.1117/12.2604938

15 February 2022 Research on ion beam figuring method based on new controllable ion source

Guangqi Zhou, Ye Tian, Feng Shi, Gang Zhou, Yongbin Wang, Yongxiang Shen, Zhe Zeng

Proceedings Volume 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021); 1216607 (2022) https://doi.org/10.1117/12.2604938
Event: Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 2021, Hong Kong, Hong Kong

Abstract

In order to solve the problem that the extra removal layer and the motion characteristics of the machine tool are difficult to meet the processing requirements of ion beam figuring, an ion beam figuring method based on new controllable ion source is proposed. By changing the working parameters of the ion optical system, the timing and duration of ion beam extraction are controlled in real time. The influence law of the machine tool motion acceleration in the process is analyzed theoretically, and then a new ion beam figuring method is proposed for the lack of dynamic performance. By adjusting the working parameters of the ion source developed by ourselves, the pulse duty ratio is continuously adjustable from 0 to 100% , and the pulse frequency is continuously adjustable from 1 to 1000 Hz. The sample is Φ100 mm monocrystalline silicon plane mirror. Firstly, the long-time stability of the new ion source was verified by line- scanning experiments, and then the error of 14.5 mm wavelength was etched with the axis of motion at a constant speed. The results show that the technology can make up for the lack of motion acceleration and avoid the extra removal layer, and have a wide range of potential applications in high precision quality adjustment, special surface treatment and so on. It is expected to promote the progress of ultra-precision machining technology.

Citation Download Citation

Guangqi Zhou, Ye Tian, Feng Shi, Gang Zhou, Yongbin Wang, Yongxiang Shen, and Zhe Zeng "Research on ion beam figuring method based on new controllable ion source", Proc. SPIE 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 1216607 (15 February 2022); https://doi.org/10.1117/12.2604938

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KEYWORDS

Ion beams

Ions

Optical components

Defense technologies

Etching

Beam controllers

Control systems

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