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Formation and suppression of KDP surface defects generated in flycutting process

  • S. F. Wang
  • , Q. Xu
  • , J. Wang
  • , C. H. An
  • , F. H. Zhang
  • , X. Y. Lei
  • China Academy of Engineering Physics

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

To improve the surface quality and laser damage resistance of Potassium Dihydrogen Phosphate (KDP) crystal processed by single point diamond fly-cutting (SPDF) technique, formation and suppression of KDP surface defects are investigated. Firstly, multiple measuring methods have been utilized to characterize KDP surface defects. According to their structure and chemical characters, KDP surface defects were classified into four categories and forming reason of each was analyzed. Based on these analysis results, theoretical model for describing the formation process of KDP surface defects was established and conditions for achieving defects-free KDP surfaces were proposed. Finally, flycutting experiments were carried out to verify the effect of the defects suppression measures. Experiment results indicate that smooth KDP surface with roughness less than 2 nm can be obtained and KDP surface defects can be suppressed effectively by applying the proposed methods.

Original languageEnglish
Title of host publication9th International Symposium on Advanced Optical Manufacturing and Testing Technologies
Subtitle of host publicationAdvanced Optical Manufacturing Technologies
EditorsYongjian Wan, Bin Fan, Xiangang Luo, Mingbo Pu, Xiong Li, William T. Plummer
PublisherSPIE
ISBN (Electronic)9781510623187
DOIs
StatePublished - 2019
Event9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, AOMATT 2018 - Chengdu, China
Duration: 26 Jun 201829 Jun 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10838
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, AOMATT 2018
Country/TerritoryChina
CityChengdu
Period26/06/1829/06/18

Keywords

  • Defects suppression
  • Diamond fly-cutting
  • KDP crystal
  • Surface quality

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