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September 10, 2025Inorganic Chemistry

Design and Fabrication of Antireflective Coatings with Enhanced Transmittance and High Laser-Induced Damage Threshold for ZnGeP2 Mid-Infrared Crystals

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Authors

LLLiqin LiuHSHui SunHZHuang Zhi-jian

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Overview

This research demonstrates improved transmittance and laser-induced damage threshold in ZnGeP2 related to antireflective coatings, indicating suitability for advanced laser applications.

Key Points

  • Average transmittance exceeded 99% across critical mid-infrared wavelengths, substantially improving optical performance.
  • Coating demonstrated a laser-induced damage threshold of 1.39 J/cm2, indicating its robustness under high-energy conditions.
  • The design maintains high performance despite thickness variations of up to 50 nm, facilitating practical fabrication techniques.
  • Experimental validation confirmed a relative transmittance improvement of 66% compared to uncoated ZnGeP2.

Cite This Study

Liu et al. (2025) studied this question.

synapsesocial.com/papers/68c1a26154b1d3bfb60dd6e0https://doi.org/10.1021/acs.inorgchem.5c02291
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  1. 12.09 μm high-gain, high-energy sub-nanosecond laser amplification system and its application to a mJ-level mid-infrared ZnGeP2 OPG2024 · 4 citations
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