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Athermal Crystals Library
Athermal crystals are precision-engineered materials designed to maintain exceptional optical performance under fluctuating temperature conditions, ensuring reliability in high-precision applications.

Overview of Athermal Crystals

The Athermal Crystals library at Photonics on Crystals (POC) offers a comprehensive resource for customers seeking advanced materials for thermally stable optical systems. Athermal crystals are essential in applications where temperature-induced changes in refractive index, expansion, or contraction could compromise optical accuracy. This page serves as a guide to help customers select the best athermal crystal for their specific needs, providing an overview of key materials, their properties, and their applications.

At POC, we specialize in the engineering and fabrication of athermal crystals, leveraging advanced manufacturing techniques to deliver unparalleled precision and performance. With our expertise, customers can trust that our crystals will enhance the reliability of their optical systems, whether used in aerospace, astronomy, or high-performance instrumentation. Below, we delve into the key athermal crystals in our library, providing detailed descriptions to aid in your selection process.

Comparison Table for Athermal Crystals

CrystalTransmission Range (µm)Refractive IndexKey FeaturesApplications
Zerodur0.3 – 2.51.54Near-zero thermal expansion, high stability, excellent mechanical propertiesTelescope mirrors, optical components, semiconductor lithography
Ohara Clearceram-Z0.35 – 2.51.55Ultra-low thermal expansion, high optical clarity, excellent dimensional accuracyMetrology, laser systems, high-end telescopes
Corning 79720.2 – 3.51.46Exceptional thermal stability, superior optical transmission, low thermal expansionLaser systems, aerospace instruments, high-precision metrology tools
Astrocytall CO-115M0.3 – 2.51.55Outstanding dimensional stability, resistance to thermal fluctuations, robust optical propertiesAerospace applications, optical benches, high-precision scientific instruments
Ohara Clearceram-Z Ex0.3 – 2.51.55Enhanced thermal stability, improved optical precision, highly reliable under extreme conditionsSatellite imaging systems, high-performance telescopes, cutting-edge metrology tools

Zerodur

Zerodur is a pioneering glass-ceramic material known for its near-zero coefficient of thermal expansion (CTE). This exceptional stability ensures that Zerodur remains dimensionally unchanged across a wide temperature range, making it ideal for high-precision optical systems. Its optical homogeneity and excellent mechanical properties make it a preferred choice for applications in astronomy, aerospace, and semiconductor lithography. Zerodur is widely used for telescope mirrors, optical components, and high-stability platforms. At POC, we provide Zerodur in custom shapes and coatings tailored to meet stringent customer requirements.
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Ohara Clearceram-Z

Ohara Clearceram-Z is a high-performance glass-ceramic material with an ultra-low CTE, comparable to that of Zerodur. Its exceptional thermal stability and optical clarity make it a superior choice for precision instruments exposed to temperature variations. Clearceram-Z is commonly used in metrology, laser systems, and high-end telescopes. With its high dimensional accuracy and resistance to environmental stress, it ensures optimal performance in demanding conditions. POC offers precise fabrication and custom coatings to optimize Clearceram-Z for specific applications.
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Corning 7972

Corning 7972 is a specialized fused silica with remarkable thermal stability, excellent optical transmission, and a low thermal expansion coefficient. This material is often used in applications requiring superior thermal and mechanical properties, such as laser systems, aerospace instruments, and high-precision metrology tools. Corning 7972 offers outstanding UV and infrared transmission, making it versatile for various optical designs. POC provides tailored manufacturing solutions to integrate Corning 7972 into cutting-edge optical systems.
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Astrocytall CO-115M

Astrocytall CO-115M is a premium-grade glass-ceramic known for its outstanding dimensional stability and resistance to thermal fluctuations. Its optical and mechanical properties make it a top choice for aerospace applications, optical benches, and high-precision scientific instruments. This material's ability to perform reliably under extreme conditions ensures consistent optical performance across a wide temperature range. POC's advanced fabrication techniques ensure Astrocytall CO-115M meets the most demanding technical requirements.
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Why Choose POC for Athermal Crystals?

Photonics on Crystals (POC) brings unmatched expertise in the fabrication and engineering of athermal crystals. With advanced facilities and a commitment to quality, we ensure that every product meets the highest standards of performance and precision. Whether you’re developing optical systems for aerospace, scientific research, or industrial applications, our athermal crystal solutions will enhance the reliability and accuracy of your designs. Explore our library to find the ideal athermal crystal for your project, or contact us for personalized guidance and custom solutions.