Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal

Jian Cheng; Hao Yang; Qi Liu; Mingjun Chen; Wenjing Ma; Jiubin Tan; Chenhui An; Zhichao Liu

doi:10.1117/12.2280519

Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal

Jian Cheng, Hao Yang, Qi Liu, Mingjun Chen, Wenjing Ma, Jiubin Tan, Chenhui An, Zhichao Liu

Department of Mechanical Engineering

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

3 Citations (SciVal)

Abstract

Micro-machining has been regarded as the most promising method to mitigate the laser damage growth on KDP/DKDP crystal surfaces. In this work, the near-field and far-field light modulations caused by three kinds of typical mitigation contours (spherical, Gaussian and conical) were theoretically investigated and compared to determine the optimal contours for achieving the minimum light intensification. Then, based on Computer Aided Manufacturing (CAM), a specific machining flow combining layer milling (rough repairing) and spiral milling (fine repairing) was developed to repair the surface damage with high efficiency and surface quality. Finally, the morphology, transmittance and laser damage resistance of the repaired KDP surfaces were tested. The theoretical and experimental results indicate that the conical mitigation contours mostly possess the best repaired surface quality and optical performance. The developed combined rough and fine machining flow could be applied as a practical repairing flow to mitigate the laser-induced surface damage growth of KDP crystal optics.

Original language	English
Title of host publication	49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017
Editors	Gregory J. Exarhos, Vitaly E. Gruzdev, Joseph A. Menapace, Detlev Ristau, M.J. Soileau
Publisher	SPIE
ISBN (Electronic)	9781510613621
DOIs	https://doi.org/10.1117/12.2280519
Publication status	Published - 13 Nov 2017
Event	49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017 - Boulder, USA United States Duration: 24 Sept 2017 → 27 Sept 2017

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10447
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017
Country/Territory	USA United States
City	Boulder
Period	24/09/17 → 27/09/17

Bibliographical note

Publisher Copyright:
© 2017 SPIE.

Funding

This work was sponsored by the Science Challenge Project (No. JCKY2016212A506-0503), National Nature Science Foundation of China (No. 51775147, No. 51705105) and Self-Planned Task (No. SKLRS201718A) of State Key Laboratory of Robotics and System (HIT).

Funders	Funder number
Science Challenge Project of China	JCKY2016212A506-0503
National Aerospace Science Foundation of China	51705105, 51775147

Keywords

KDP crystal
laser damage resistance
micro-milling repairing
optics recycling
surface damage growth

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2280519

Cite this

Cheng, J., Yang, H., Liu, Q., Chen, M., Ma, W., Tan, J., An, C., & Liu, Z. (2017). Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal. In G. J. Exarhos, V. E. Gruzdev, J. A. Menapace, D. Ristau, & M. J. Soileau (Eds.), 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017 Article 104471L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10447). SPIE. https://doi.org/10.1117/12.2280519

Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal. / Cheng, Jian; Yang, Hao; Liu, Qi et al.
49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017. ed. / Gregory J. Exarhos; Vitaly E. Gruzdev; Joseph A. Menapace; Detlev Ristau; M.J. Soileau. SPIE, 2017. 104471L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10447).

Research output: Chapter or section in a book/report/conference proceeding › Chapter in a published conference proceeding

Cheng, J, Yang, H, Liu, Q, Chen, M, Ma, W, Tan, J, An, C & Liu, Z 2017, Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal. in GJ Exarhos, VE Gruzdev, JA Menapace, D Ristau & MJ Soileau (eds), 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017., 104471L, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10447, SPIE, 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017, Boulder, USA United States, 24/09/17. https://doi.org/10.1117/12.2280519

Cheng J, Yang H, Liu Q, Chen M, Ma W, Tan J et al. Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal. In Exarhos GJ, Gruzdev VE, Menapace JA, Ristau D, Soileau MJ, editors, 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017. SPIE. 2017. 104471L. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2280519

Cheng, Jian ; Yang, Hao ; Liu, Qi et al. / Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal. 49th Annual Laser Damage Symposium Proceedings - Laser-Induced Damage in Optical Materials 2017. editor / Gregory J. Exarhos ; Vitaly E. Gruzdev ; Joseph A. Menapace ; Detlev Ristau ; M.J. Soileau. SPIE, 2017. (Proceedings of SPIE - The International Society for Optical Engineering).

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Development of optimal mitigation contours and their machining flow by micro-milling to improve the laser damage resistance of KDP crystal

Abstract

Publication series

Conference

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

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