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April 22, 2024

The main performance parameters of chalcogenide glass

The main performance parameters of chalcogenide glass include:

  1. Infrared Transmittance Range: Chalcogenide glass typically has a broad range of infrared transmittance, typically ranging from 0.5 to 25 micrometers (μm).

  2. Refractive Index Temperature Coefficient (dn/dT): Chalcogenide glass exhibits a low refractive index temperature coefficient, indicating minimal variation in refractive index with temperature changes.

  3. Dispersion: Chalcogenide glass demonstrates low dispersion characteristics, contributing to its suitability for various optical applications.

  4. Composition and Adjustability: The composition and properties of chalcogenide glass are continuously adjustable, offering flexibility in tailoring its characteristics to specific requirements.

  5. Manufacturing Advantages: Chalcogenide glass offers advantages in terms of resource utilization and manufacturing costs compared to other infrared materials like germanium single crystal and zinc selenide (ZnSe) crystal. It also boasts lower consumption of scarce resources such as germanium (Ge).

  6. Production Techniques: Chalcogenide glass can be mass-produced using precision hot pressing technology, which offers higher production efficiency and lower manufacturing costs compared to traditional machining processes like single-point diamond turning.

  7. Versatility: Chalcogenide glass can be manufactured into various optical shapes, including planar, spherical, and non-spherical forms, making it widely applicable in infrared imaging and optoelectronic industries.

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