Journal of Sol-Gel Science and Technology

, Volume 88, Issue 1, pp 249–254 | Cite as

Fabrication of UV-curable silicone coating with high transmittance and laser-induced damage threshold for high-power laser system

  • Xue-Ran Deng
  • Wei Yang
  • Qing-Hua Zhang
  • Hao-Hao Hui
  • Yao-Wei Wei
  • Jian Wang
  • Qiao Xu
  • Xiang-Yang LeiEmail author
  • Jin-Ju Chen
  • Ji-Liang Zhu
Original Paper: Sol-gel and hybrid materials for optical, photonic and optoelectronic applications


Third harmonic generating (THG) element is an important component for high-power laser system and its incident side is in need of high transmittance and laser-induced damage threshold (LIDT) at specified wavelengths (1064 nm and 532 nm) to meet the demand of laser-driven inertial confinement fusion. An UV-curable organic–inorganic hybrid silicone coating was fabricated for this THG element and its relevant properties have been investigated. Si–O–Si backbone structure in combination with characteristics from a mixture of tripropyleneglycoldiacrylate (TPGDA) as a reactive diluent and Darocur 1173 (HMPP) as a photoinitiator provided qualified adhesion, hardness, transmittance, and laser damage resistance for the UV-cured coating. Based on this design, THG element with both high transmittance and LIDT at specified wavelengths was successfully achieved after the solidification of coatings by means of UV irradiation, which provides an alternate option to cure coatings upon the temperature-sensitive substrates (like potassium dideuterium phosphate (DKDP), ammonium dihydrogen phosphate (ADP), and so on) without heating, and meanwhile greatly reduces the time consumption of curing process.


  • Photopolymerization of silicone coating is applied in high-power laser system.

  • Qualified optical, mechanical, and laser-resistant property is achieved.

  • The phase transition problem of precious DKDP crystal is solved.


UV-curable Silicone coating Transmittance Laser-induced damage threshold High-power laser system 



This work is supported by the National Natural Science Foundation of China (grant no. 51505575).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Research Center of Laser FusionChina Academy of Engineering PhysicsMianyangChina
  2. 2.School of Materials and EnergyUniversity of Electronic Science and Technology of ChinaChengduChina
  3. 3.College of Materials Science and EngineeringSichuan UniversityChengduChina

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