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March 28, 2026Optics & Laser TechnologyOpen Access

Micro plasma-assisted localized deliquescence polishing for the remediation of surface micro-defects in KDP crystal

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Authors

SHShuhao HeYZYayu ZhangJZJianjie Zhou

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Overview

Hybrid strategy improves surface micro-defects in KDP crystals, suggesting a novel approach for optical applications.

Key Points

  • This study aims to improve the surface integrity of KDP crystals using micro plasma-assisted techniques to address micro-defects.
  • Integrated micro-cold plasma modification with deliquescence polishing.
  • Utilized atmospheric-pressure cold plasma jets for surface treatment.
  • Delivered solutions through micro-capillary for precise defect remediation.
  • Characterized processes using laser confocal microscopy and scanning electron microscopy.
  • Achieved surface roughness below 5 nm, reducing micro-defects effectively.
  • Eliminated heterogeneous deliquescence caused by localized solution stagnation.
  • Demonstrated that plasma-induced super-hydrophilicity expanded processing capability.

Cite This Study

He et al. (2026) studied this question.

synapsesocial.com/papers/69c770888bbfbc51511e09f8https://doi.org/10.1016/j.optlastec.2026.115184
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  5. 5Progress on deuterated potassium dihydrogen phosphate (DKDP) crystals for high power laser system application2022 · 59 citations