Thermal effect of Nd:YAG bonded on diamond by Mo/Au metal intermediate layer at room temperature

Ningkang Deng; Yongfeng Qu; Jin Yuan; Wenbo Hu; Zhaoyang Zhang; Hongxing Wang

doi:10.1016/j.optmat.2023.114695

Thermal effect of Nd:YAG bonded on diamond by Mo/Au metal intermediate layer at room temperature

Ningkang Deng
, Yongfeng Qu
, Jin Yuan
, Wenbo Hu
, Zhaoyang Zhang
, Hongxing Wang

Faculty of Electronic and Information Engineering

Xi'an Jiaotong University

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

3 Scopus citations

Abstract

To overcome the thermal effect of a Nd:yttrium aluminum garnet (YAG) disk, a polycrystalline diamond substrate is successfully bonded to the Nd:YAG disk using a Mo/Au interlayer at room temperature. The results show that the Nd:YAG disk and diamond are almost completely bonded, with some voids at the edge of the bonding layer. Scanning electron microscopy analysis shows that the bonding interface with a thickness of 143 nm is continuous and free of nanodefects. In addition, a numerical model is developed to analyze the thermodynamic properties of the Nd:YAG/diamond composite structure. The analytical results show that a diamond heat sink significantly reduces thermal aberration compared with Cu and SiC heat sinks. Furthermore, the bending optical path difference (OPD) is proved to be a major component of the total OPD. This study is expected to help realize diamond-based laser systems with high-power output.

Original language	English
Article number	114695
Journal	Optical Materials
Volume	147
DOIs	https://doi.org/10.1016/j.optmat.2023.114695
State	Published - Jan 2024

Keywords

Diamond heat sink
Nd:YAG
Room temperature bonding
Thermal aberration

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10.1016/j.optmat.2023.114695

Cite this

@article{a17188f7c8a4475b9926f01b7383b5b5,

title = "Thermal effect of Nd:YAG bonded on diamond by Mo/Au metal intermediate layer at room temperature",

abstract = "To overcome the thermal effect of a Nd:yttrium aluminum garnet (YAG) disk, a polycrystalline diamond substrate is successfully bonded to the Nd:YAG disk using a Mo/Au interlayer at room temperature. The results show that the Nd:YAG disk and diamond are almost completely bonded, with some voids at the edge of the bonding layer. Scanning electron microscopy analysis shows that the bonding interface with a thickness of 143 nm is continuous and free of nanodefects. In addition, a numerical model is developed to analyze the thermodynamic properties of the Nd:YAG/diamond composite structure. The analytical results show that a diamond heat sink significantly reduces thermal aberration compared with Cu and SiC heat sinks. Furthermore, the bending optical path difference (OPD) is proved to be a major component of the total OPD. This study is expected to help realize diamond-based laser systems with high-power output.",

keywords = "Diamond heat sink, Nd:YAG, Room temperature bonding, Thermal aberration",

author = "Ningkang Deng and Yongfeng Qu and Jin Yuan and Wenbo Hu and Zhaoyang Zhang and Hongxing Wang",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2024",

month = jan,

doi = "10.1016/j.optmat.2023.114695",

language = "英语",

volume = "147",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Thermal effect of Nd:YAG bonded on diamond by Mo/Au metal intermediate layer at room temperature

AU - Deng, Ningkang

AU - Qu, Yongfeng

AU - Yuan, Jin

AU - Hu, Wenbo

AU - Zhang, Zhaoyang

AU - Wang, Hongxing

PY - 2024/1

Y1 - 2024/1

N2 - To overcome the thermal effect of a Nd:yttrium aluminum garnet (YAG) disk, a polycrystalline diamond substrate is successfully bonded to the Nd:YAG disk using a Mo/Au interlayer at room temperature. The results show that the Nd:YAG disk and diamond are almost completely bonded, with some voids at the edge of the bonding layer. Scanning electron microscopy analysis shows that the bonding interface with a thickness of 143 nm is continuous and free of nanodefects. In addition, a numerical model is developed to analyze the thermodynamic properties of the Nd:YAG/diamond composite structure. The analytical results show that a diamond heat sink significantly reduces thermal aberration compared with Cu and SiC heat sinks. Furthermore, the bending optical path difference (OPD) is proved to be a major component of the total OPD. This study is expected to help realize diamond-based laser systems with high-power output.

AB - To overcome the thermal effect of a Nd:yttrium aluminum garnet (YAG) disk, a polycrystalline diamond substrate is successfully bonded to the Nd:YAG disk using a Mo/Au interlayer at room temperature. The results show that the Nd:YAG disk and diamond are almost completely bonded, with some voids at the edge of the bonding layer. Scanning electron microscopy analysis shows that the bonding interface with a thickness of 143 nm is continuous and free of nanodefects. In addition, a numerical model is developed to analyze the thermodynamic properties of the Nd:YAG/diamond composite structure. The analytical results show that a diamond heat sink significantly reduces thermal aberration compared with Cu and SiC heat sinks. Furthermore, the bending optical path difference (OPD) is proved to be a major component of the total OPD. This study is expected to help realize diamond-based laser systems with high-power output.

KW - Diamond heat sink

KW - Nd:YAG

KW - Room temperature bonding

KW - Thermal aberration

UR - https://www.scopus.com/pages/publications/85179137542

U2 - 10.1016/j.optmat.2023.114695

DO - 10.1016/j.optmat.2023.114695

M3 - 文章

AN - SCOPUS:85179137542

SN - 0925-3467

VL - 147

JO - Optical Materials

JF - Optical Materials

M1 - 114695

ER -

Thermal effect of Nd:YAG bonded on diamond by Mo/Au metal intermediate layer at room temperature

Abstract

Keywords

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