Share Email Print
cover

Proceedings Paper

An investigation on the surface/subsurface defects in potassium dihydrogen phosphate crystals after fly-cutting
Author(s): Ning Hou; Yong Zhang; Liangchi Zhang; Kausala Mylvaganam; Junqi Wei; Feihu Zhang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Potassium dihydrogen phosphate (KDP) crystals play an important role in the laser ignition facility of inertial confinement fusion (ICF) due to its unique large size and transparency. However, the laser damage threshold (LDT) of KDP crystal components is far below the intrinsic threshold that the band structure of a perfect crystal should provide. It has been considered that the surface/subsurface defects of a KDP component have a significant effect on the low LDT. This paper investigates the surface fogging phenomenon when a KDP is machined by a dry diamond fly-cutting. The subsurface damage was detected with the aid of the grazing incidence X-ray diffraction (GIXD) method. It was found that the subsurface structure changed from the KDP single crystal to a lattice misaligned structure due to the fly-cutting.

Paper Details

Date Published: 28 October 2016
PDF: 4 pages
Proc. SPIE 9683, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 968309 (28 October 2016); doi: 10.1117/12.2243806
Show Author Affiliations
Ning Hou, Harbin Institute of Technology (China)
Yong Zhang, Harbin Institute of Technology (China)
Liangchi Zhang, The Univ. of New South Wales (Australia)
Kausala Mylvaganam, The Univ. of New South Wales (Australia)
Junqi Wei, Harbin Institute of Technology (China)
Feihu Zhang, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 9683:
8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Wenhan Jiang; Li Yang; Oltmann Riemer; Shengyi Li; Yongjian Wan, Editor(s)

© SPIE. Terms of Use
Back to Top