Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

The Influence of the Angstrom-scale Roughness on the Laser-induced Damage Threshold of the ZnGeP2 Single Crystal

Version 1 : Received: 27 November 2021 / Approved: 30 November 2021 / Online: 30 November 2021 (11:50:44 CET)

A peer-reviewed article of this Preprint also exists.

Yudin, N.; Khudoley, A.; Zinoviev, M.; Podzvalov, S.; Slyunko, E.; Zhuravleva, E.; Kulesh, M.; Gorodkin, G.; Kumeysha, P.; Antipov, O. The Influence of Angstrom-Scale Roughness on the Laser-Induced Damage Threshold of Single-Crystal ZnGeP2. Crystals 2022, 12, 83. Yudin, N.; Khudoley, A.; Zinoviev, M.; Podzvalov, S.; Slyunko, E.; Zhuravleva, E.; Kulesh, M.; Gorodkin, G.; Kumeysha, P.; Antipov, O. The Influence of Angstrom-Scale Roughness on the Laser-Induced Damage Threshold of Single-Crystal ZnGeP2. Crystals 2022, 12, 83.

Journal reference: Crystals 2022, 12, 83
DOI: 10.3390/cryst12010083

Abstract

Magnetorheological processing was applied to polish the working surfaces of the ZnGeP2 single crystal, in which a non-aqueous liquid with magnetic particles of carbonyl iron with the addition of nanodiamonds was used. Samples of a single crystal ZnGeP2 with an angstrom level of surface roughness were received. the use of MRP has allowed more accurately characterizing possible structural defects that have emerged on the surface of a single crystal and have a size of ~ 0.5-1.5 μm. the LIDT value at the indicated or-ders of magnitude of the surface roughness parameters is determined not by the quality of polishing, but by the number of point depressions caused by physical limitations of the structural configuration of the crystal volume. These results are in good agreement with the assumption made about a significant effect of the concentration of dislocations in a ZnGeP2 crystal on LIDT.

Keywords

Laser induces damage threshold; ZnGeP2; Magnetorheological polish

Subject

PHYSICAL SCIENCES, Optics

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.