OP8340 Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 2 mm, Uncoated

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 2 mm, Uncoated Description

Calcium Fluoride (CaF2) Windows provide excellent transmission from the ultraviolet (UV) to the infrared (IR) range, making them ideal for spectroscopy, laser systems, and imaging applications. With a 25.4 mm diameter and 2 mm thickness, these uncoated windows offer a low refractive index and minimal fluorescence, which helps maintain high optical clarity. Their high damage threshold and good thermal stability further ensure reliable performance in demanding environments.

Engineered from premium-grade CaF2 material, each window undergoes rigorous inspection to meet stringent quality standards. They feature a polished surface that minimises scattering and ensures optimal light throughput. Due to their exceptional chemical inertness, these CaF2 windows resist water and most acids, allowing for a longer operational lifespan. Whether used in research laboratories or industrial setups, they consistently deliver dependable, high-quality results.

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 2 mm, Uncoated Applications

Calcium Fluoride (CaF2) windows with a 25.4 mm diameter and 2 mm thickness, uncoated, offer excellent optical clarity and broad spectral transmission from the ultraviolet to the infrared. Their chemical durability and low refractive index make them suitable for harsh environmental conditions while minimising scattering. These properties, combined with high thermal stability, ensure their reliable performance across multiple applications in industrial, research, and commercial sectors.

1. Industrial Applications

·         Laser Cutting Systems: Withstand high-power lasers due to excellent thermal stability.

·         Spectroscopic Monitoring: Provide clear optical paths for process control in harsh environments.

2. Research Applications

·         UV Spectroscopy: Enable precise measurement of UV radiation without significant signal loss.

·         Cryogenic Experiments: Maintain structural integrity and low fluorescence under extreme temperatures.

3. Commercial Applications

·         Display Panels: Offer transparent protective layers for sensitive screens in specialised devices.

·         Optical Sensors: Ensure minimal distortion of signals, enhancing sensor accuracy.

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 2 mm, Uncoated Packaging

Each Calcium Fluoride Window (25.4 mm diameter x 2 mm thick, uncoated) is carefully encased in a clean, dust-free environment, with protective foam layers to absorb shocks. For optimal preservation, store in a cool, dry location away from corrosive chemicals. Protective gloves and clean environments reduce contamination risks. Custom packaging, including vacuum-sealed pouches or individual compartments, is available upon request for specialised applications.

Packaging: Vacuum sealed, Wooden Box, or Customised.

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 2 mm, Uncoated FAQs

Q1: What are the key material properties of Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 2 mm, Uncoated?

A1: Calcium Fluoride (CaF2) windows exhibit high optical transmission from around 0.2 µm in the ultraviolet through 7 µm in the infrared, making them suitable for broadband applications. They have a low refractive index (~1.43 at 589 nm) and minimal birefringence due to their cubic crystal structure. The material’s Knoop hardness is approximately 158, which offers moderate scratch resistance. Overall, these properties support consistent performance across diverse optical systems.

Q2: How should this product be handled and stored?

A2: Calcium Fluoride (CaF2) windows are moderately brittle and can chip or fracture if mishandled. They should be held by the edges with powder-free gloves to minimise contamination and prevent direct contact with the polished surfaces. Store them in a clean, dry environment with minimal temperature fluctuation to avoid thermal shock. Protective packaging is recommended to prevent accidental scratches, ensuring optimal optical performance and prolonged product life.

Q3: Which quality standards and certifications apply to Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 2 mm, Uncoated?

A3: These windows are commonly produced in compliance with ISO 9001 for overall manufacturing quality, ensuring consistent material purity, finishing accuracy, and dimensional tolerance. Optical parameters often follow ISO 10110 specifications for surface quality, wavefront distortion, and parallelism, which define clear acceptance criteria. Some suppliers may also provide RoHS compliance documentation, confirming the absence of restricted substances. These certifications guarantee reliable performance for high-precision research and industrial applications.

Related Information

1. Material Properties and Advantages

Calcium fluoride (CaF₂) windows with a diameter of 25.4 mm and a thickness of 2 mm, when left uncoated, exhibit exceptional transmissive qualities across a broad range of wavelengths. Their naturally low refractive index helps minimise the need for additional anti-reflective layers, making them an ideal choice for various critical optical systems. In addition, these windows possess a high laser damage threshold, ensuring consistent performance even under demanding conditions such as intense UV or infrared laser exposure.

Designed with precision, these windows stand out due to their impressive hardness and resistance to mechanical wear. The robust crystalline structure of CaF₂ also makes them inherently resistant to water and most chemical solvents, reducing the potential for degradation over time. Because of these notable properties, uncoated calcium fluoride windows can be counted on to provide stable, long-term performance in sophisticated optical applications, including spectroscopic equipment and laser systems.

2. Applications in Advanced Industries

Industrial laboratories rely on calcium fluoride windows to handle high-energy lasers and sensitive spectrophotometric instruments. Thanks to their low absorption and high damage threshold, these uncoated devices offer reliable performance in settings where even minute losses can affect overall system accuracy. Critical tasks within the semiconductor sector also benefit from their ability to transmit wavelengths that are transparent to other common optical materials, supporting advanced lithography processes.

Scientific institutions frequently implement CaF₂ windows in research-focused ventures, such as exploration of vacuum ultraviolet regions, quantum computing frameworks, and specialised imaging systems. They can withstand broad temperature ranges without significant distortion or birefringence, enabling precise and repeatable results. By maintaining exceptional clarity and robustness, these uncoated windows remain indispensable in next-generation applications that demand both accuracy and durability.