Characterization of manufacturing-induced surface scratches and their effect on laser damage resistance performance of diamond fly-cut KDP crystal

Jian Cheng; Hao Yang; Qi Liu; Linjie Zhao; Zhichao Liu; Henan Liu; Tingzhang Wang; Yong Xiao; Kehui Hu; Mingjun Chen; Jiubin Tan

doi:10.1016/j.rinp.2019.102753

Characterization of manufacturing-induced surface scratches and their effect on laser damage resistance performance of diamond fly-cut KDP crystal

Jian Cheng, Hao Yang, Qi Liu, Linjie Zhao, Zhichao Liu, Henan Liu, Tingzhang Wang, Yong Xiao, Kehui Hu, Mingjun Chen, Jiubin Tan

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

19 Citations (SciVal)

Abstract

Manufacturing-induced defects have drawn more and more attentions to improve the laser damage resistance performance of KDP crystal applied in high-power laser systems. Here, the morphology of surface scratches on diamond fly-cut KDP crystal is characterized and their effect on the laser damage resistance is theoretically and experimentally investigated. The results indicate that surface scratches could lower laser-induced damage threshold (LIDT) by modulating incident lasers and producing resultant local light intensifications. The induced maximum light intensity enhancement factors (LIEFs) are dependent on scratch shapes and dimensions. The diffraction effects originating from scratch edges are responsible for the strongest light intensification. Even for ultra-precision finished KDP surface with scratches that well satisfy the currently applied scratch/dig specification, the induced LIEFs are quite high, indicating that the actual defect dimension allowance should be amended and specified according to the defect-induced LIEFs. The effect of scratches on laser damage resistance is experimentally verified by the tested LIDT, which is approximately consistent with the simulation one. The morphologies of laser damage sites further confirm the role of scratches in lowering LIDT. This work could offer new perspective and guidance for fully evaluating the performance of ultra-precision manufactured optical materials applied in high-power laser facilities.

Original language	English
Article number	102753
Journal	Results in Physics
Volume	15
DOIs	https://doi.org/10.1016/j.rinp.2019.102753
Publication status	Published - 31 Dec 2019

Funding

We gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 51705105), Young Elite Scientists Sponsorship Program by CAST (No. 2018QNRC001), China Postdoctoral Science Foundation Funded Project (Nos. 2017M621260, 2018T110288), Heilongjiang Postdoctoral Fund (No. LBH-Z17090), Fundamental Research Funds for the Central Universities (No. HIT.NSRIF.2019053), Science Challenge Project (No. TZ2016006-0503-01), Self-Planned Task (Nos. SKLRS201803B, SKLRS201718A) of State Key Laboratory of Robotics and System (HIT) and Opening Project of Key Laboratory of Testing Technology for Manufacturing Process (Southwest University of Science and Technology). We gratefully acknowledge the financial support from the National Natural Science Foundation of China (No. 51705105 ), Young Elite Scientists Sponsorship Program by CAST (No. 2018QNRC001 ), China Postdoctoral Science Foundation Funded Project (Nos. 2017 M621260 , 2018 T110288 ), Heilongjiang Postdoctoral Fund (No. LBH-Z17090 ), Fundamental Research Funds for the Central Universities (No. HIT.NSRIF. 2019053 ), Science Challenge Project (No. TZ2016006-0503-01 ), Self-Planned Task (Nos. SKLRS201803B , SKLRS201718A ) of State Key Laboratory of Robotics and System (HIT) and Opening Project of Key Laboratory of Testing Technology for Manufacturing Process ( Southwest University of Science and Technology ).

Funders	Funder number
Heilongjiang Postdoctoral Fund	LBH-Z17090
Key Laboratory of Testing Technology for Manufacturing Process
Opening Project of Key Laboratory of Testing Technology for Manufacturing Process
China Association for Science and Technology for the Young Elite Scientists Sponsorship Program
Heilongjiang Provincial Postdoctoral Science Foundation
National Natural Science Foundation of China	51705105
China Postdoctoral Science Foundation	2017 M621260, 2018 T110288
Harbin Institute of Technology
Southwest University of Science and Technology
China Academy of Space Technology	2018QNRC001
State Key Laboratory of Robotics and System
Fundamental Research Funds for the Central Universities	2019053
Science Challenge Project of China	SKLRS201718A, SKLRS201803B

Keywords

Diamond fly-cutting
KDP crystal
Laser damage resistance performance
Light intensification
Manufacturing-induced defects

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/j.rinp.2019.102753Licence: CC BY-NC-ND

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title = "Characterization of manufacturing-induced surface scratches and their effect on laser damage resistance performance of diamond fly-cut KDP crystal",

abstract = "Manufacturing-induced defects have drawn more and more attentions to improve the laser damage resistance performance of KDP crystal applied in high-power laser systems. Here, the morphology of surface scratches on diamond fly-cut KDP crystal is characterized and their effect on the laser damage resistance is theoretically and experimentally investigated. The results indicate that surface scratches could lower laser-induced damage threshold (LIDT) by modulating incident lasers and producing resultant local light intensifications. The induced maximum light intensity enhancement factors (LIEFs) are dependent on scratch shapes and dimensions. The diffraction effects originating from scratch edges are responsible for the strongest light intensification. Even for ultra-precision finished KDP surface with scratches that well satisfy the currently applied scratch/dig specification, the induced LIEFs are quite high, indicating that the actual defect dimension allowance should be amended and specified according to the defect-induced LIEFs. The effect of scratches on laser damage resistance is experimentally verified by the tested LIDT, which is approximately consistent with the simulation one. The morphologies of laser damage sites further confirm the role of scratches in lowering LIDT. This work could offer new perspective and guidance for fully evaluating the performance of ultra-precision manufactured optical materials applied in high-power laser facilities.",

keywords = "Diamond fly-cutting, KDP crystal, Laser damage resistance performance, Light intensification, Manufacturing-induced defects",

author = "Jian Cheng and Hao Yang and Qi Liu and Linjie Zhao and Zhichao Liu and Henan Liu and Tingzhang Wang and Yong Xiao and Kehui Hu and Mingjun Chen and Jiubin Tan",

year = "2019",

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doi = "10.1016/j.rinp.2019.102753",

language = "English",

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journal = "Results in Physics",

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T1 - Characterization of manufacturing-induced surface scratches and their effect on laser damage resistance performance of diamond fly-cut KDP crystal

AU - Cheng, Jian

AU - Yang, Hao

AU - Liu, Qi

AU - Zhao, Linjie

AU - Liu, Zhichao

AU - Liu, Henan

AU - Wang, Tingzhang

AU - Xiao, Yong

AU - Hu, Kehui

AU - Chen, Mingjun

AU - Tan, Jiubin

PY - 2019/12/31

Y1 - 2019/12/31

N2 - Manufacturing-induced defects have drawn more and more attentions to improve the laser damage resistance performance of KDP crystal applied in high-power laser systems. Here, the morphology of surface scratches on diamond fly-cut KDP crystal is characterized and their effect on the laser damage resistance is theoretically and experimentally investigated. The results indicate that surface scratches could lower laser-induced damage threshold (LIDT) by modulating incident lasers and producing resultant local light intensifications. The induced maximum light intensity enhancement factors (LIEFs) are dependent on scratch shapes and dimensions. The diffraction effects originating from scratch edges are responsible for the strongest light intensification. Even for ultra-precision finished KDP surface with scratches that well satisfy the currently applied scratch/dig specification, the induced LIEFs are quite high, indicating that the actual defect dimension allowance should be amended and specified according to the defect-induced LIEFs. The effect of scratches on laser damage resistance is experimentally verified by the tested LIDT, which is approximately consistent with the simulation one. The morphologies of laser damage sites further confirm the role of scratches in lowering LIDT. This work could offer new perspective and guidance for fully evaluating the performance of ultra-precision manufactured optical materials applied in high-power laser facilities.

AB - Manufacturing-induced defects have drawn more and more attentions to improve the laser damage resistance performance of KDP crystal applied in high-power laser systems. Here, the morphology of surface scratches on diamond fly-cut KDP crystal is characterized and their effect on the laser damage resistance is theoretically and experimentally investigated. The results indicate that surface scratches could lower laser-induced damage threshold (LIDT) by modulating incident lasers and producing resultant local light intensifications. The induced maximum light intensity enhancement factors (LIEFs) are dependent on scratch shapes and dimensions. The diffraction effects originating from scratch edges are responsible for the strongest light intensification. Even for ultra-precision finished KDP surface with scratches that well satisfy the currently applied scratch/dig specification, the induced LIEFs are quite high, indicating that the actual defect dimension allowance should be amended and specified according to the defect-induced LIEFs. The effect of scratches on laser damage resistance is experimentally verified by the tested LIDT, which is approximately consistent with the simulation one. The morphologies of laser damage sites further confirm the role of scratches in lowering LIDT. This work could offer new perspective and guidance for fully evaluating the performance of ultra-precision manufactured optical materials applied in high-power laser facilities.

KW - Diamond fly-cutting

KW - KDP crystal

KW - Laser damage resistance performance

KW - Light intensification

KW - Manufacturing-induced defects

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Characterization of manufacturing-induced surface scratches and their effect on laser damage resistance performance of diamond fly-cut KDP crystal

Abstract

Funding

Keywords

ASJC Scopus subject areas

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