Investigation of thermal radiation effect on optical dome of sapphire coated yttrium oxide

Infrared (IR) antireflective and protective coating (ARPC) is crucial for the development of IR precision guidance and detection systems for practical applications, attracting significant attention from strong military powers worldwide. Extreme application environments require functional film to have high surface hardness, excellent stability, and good adhesion. Further, multispectral optical transmission demands extremely low absorption in the visible and far‐IR bands, adjustability of optical performance parameters, and optical antireflection in particular bands, and radar stealth requires a relatively low resistance. Herein, recent experimental progress on IR ARPC is reviewed and future opportunities are discussed. Based on the application environment and window substrate, various ARPC material systems, including diamond‐like C, Ge carbide, B phosphide, and oxides, have been developed. These systems are capable of fulfilling different application demands and demonstrate exciting application prospects. To promote the development of IR ARPC material technology, the basic characteristics, fabrication techniques, microscale structures, optical properties, mechanical properties, and development and applications of typical IR ARPC materials from a comprehensive and systematic perspective are presented.

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Past Achievements and Future Challenges in the Development of Infrared Antireflective and Protective Coatings

Guo

Yang

Dai

et al. 2020

Physica Status Solidi (a)

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Progress in infrared transparencies under opto electro thermo and mechanical environments

Xu,

Guo,

Ralchenko

et al. 2023

Surf. Sci. Tech.

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In recent years, there has been a growing interest and research focus on infrared optical thin films as essential components in infrared optical systems. In practical applications, extreme environmental factors such as aerodynamic heating and mechanical stresses, electromagnetic interferences, laser interferences, sand erosions, and rain erosions all lead to issues including cracking, wrinkling, and delaminations of infrared thin films. Extreme application environment imposes stringent requirements on functional films, necessitating high surface hardness, stability, and adhesion. Additionally, for multispectral optical transmissions, infrared optical thin films are expected to exhibit high transmittance in the visible and far-infrared wavelength bands while possessing tunability and optical anti-reflection properties in specific wavelength ranges. Electromagnetic shielding requires superior electrical performance, while resisting laser interference demands rapid phase change capabilities. This paper focuses on current research progresses in infrared optical thin films under extreme conditions such as opto, electro, thermos and mechanical environments. Table of Contents Graphic gives detailed outline. Future opportunities and challenges are also highlighted. Graphical Abstract

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Effect of O2/Ar ratio on the microstructure and tribological properties of Y2O3 films by multi-arc ion plating

Li,

Liu,

Zhang

et al. 2024

Ceramics International

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Investigation of thermal radiation effect on optical dome of sapphire coated yttrium oxide

Cited by 6 publications

References 26 publications

Past Achievements and Future Challenges in the Development of Infrared Antireflective and Protective Coatings

Past Achievements and Future Challenges in the Development of Infrared Antireflective and Protective Coatings

Progress in infrared transparencies under opto electro thermo and mechanical environments

Effect of O2/Ar ratio on the microstructure and tribological properties of Y2O3 films by multi-arc ion plating

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