OP8339 Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 1 mm, Uncoated

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 1 mm, Uncoated Description

These Calcium Fluoride (CaF2) windows, measuring 25.4 mm in diameter and 1 mm in thickness, provide excellent optical performance across a broad spectral range from the ultraviolet to the infrared. Thanks to the low refractive index and minimal absorption, they enable high transmission and clarity. Their durability and resistance to thermal shock make them suitable for applications where precise light control is essential. Because they are uncoated, these windows can be customised for specific coating requirements or used as-is for various optical and laser systems.

Ideal for spectroscopy, infrared imaging, and laser-based measurement setups, these CaF2 windows are fabricated under stringent quality standards to ensure consistent performance and reliability. Each batch is thoroughly inspected to guarantee surface quality, flatness, and purity, delivering the optical components required for critical projects.

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 1 mm, Uncoated Applications

Calcium Fluoride (CaF2) windows are widely used in optical systems for their broad spectral transmission range, from the UV to the IR. Their low refractive index minimises reflection losses, while their mechanical properties ensure durability in demanding environments. With a standard diameter of 25.4 mm and a thickness of 1 mm, these uncoated windows deliver optimised performance across various industries, research fields, and commercial applications.

1. Industrial Applications

·         Application 1: Laser cutting and welding heads, where CaF2 windows resist high temperatures and harsh conditions.

·         Application 2: Protective viewing windows in chemical processing systems, utilising their robustness against corrosive environments.

2. Research Applications

·         Application 1: Spectroscopic measurements at UV and IR wavelengths, benefitting from CaF2’s excellent transparency.

·         Application 2: Cryogenic and vacuum experiments, taking advantage of the material’s low refractive index and minimal fluorescence.

3. Commercial Applications

·         Application 1: High-end scanning devices, where precise optical clarity is required for sensitive detection.

·         Application 2: Environmental monitoring equipment, utilising CaF2 windows for accurate IR-based sensing.

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 1 mm, Uncoated Packaging

These Calcium Fluoride (CaF2) Windows come sealed in airtight, protective wrapping to minimise moisture infiltration. Surrounded by foam padding to guard against shock, each window is individually bagged to prevent contamination. Store them in a dry environment at stable room temperature. The reusable, tamper-evident container ensures minimal handling. For specialised needs, custom shapes, thicknesses, and coatings are available upon request. Contact us for further customisation options.

Packaging: Vacuum sealed, Wooden Box, or Customised.

Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 1 mm, Uncoated FAQs

Q1: What are the key material properties of Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 1 mm, Uncoated?

A1: Calcium Fluoride (CaF2) Windows possess a broad transmission range spanning the ultraviolet to infrared spectrum, approximately 0.13 µm to 10 µm. They exhibit low dispersion, minimal birefringence, and a low refractive index (~1.4 at 2.5 µm), making them ideal for various optical applications. Additionally, CaF2 demonstrates high thermal stability, excellent chemical resistance, and a relatively high laser damage threshold, enabling consistent performance in demanding scientific and industrial settings.

Q2: How should these windows be handled and stored to maintain optimal performance?

A2: Because Calcium Fluoride is relatively brittle and scratch-prone, windows should be handled with clean, lint-free gloves to prevent surface contamination. They must be kept in a dust-free, low-humidity environment, ideally in protective containers or pouches. Avoid exposure to excessive mechanical stress or corrosive chemicals. Periodic inspection for dust or damage is recommended, and cleaning should be done with gentle solvents and non-abrasive methods.

Q3: Which quality standards and certifications apply to Calcium Fluoride (CaF2) Windows Dia. 25.4 mm x 1 mm, Uncoated?

A3: These Calcium Fluoride windows are often manufactured in compliance with ISO 10110 standards, covering surface quality, inspection procedures, and material characteristics. Many suppliers also follow MIL-PRF or MIL-STD guidelines for optical components used in military and aerospace applications. RoHS and REACH compliance may be required for certain markets, ensuring hazardous material restrictions are met. Manufacturers typically provide detailed documentation confirming conformance with these stringent standards.

Related Information

1. Material Properties and Advantages

Calcium Fluoride (CaF2) Windows in the 25.4 mm diameter x 1 mm thickness, uncoated format are renowned for their exceptional optical clarity over a broad spectral range, spanning from the deep ultraviolet to the infrared. This wide transparency window makes them an ideal choice for precision instruments that require consistent and reliable light transmission, such as high-end interferometers and spectroscopic equipment.

Due to the material’s intrinsic low refractive index and high damage threshold, CaF2 Windows exhibit minimal scatter and excellent resistance to mechanical and thermal stress. Their ability to withstand chemically harsh environments also contributes to their longevity in demanding applications, significantly reducing maintenance requirements and ensuring stable performance under varying operational conditions.

2. Applications in Advanced Industries

State-of-the-art laser systems frequently utilise these Calcium Fluoride Windows for beam delivery, focusing, and protective enclosures, capitalising on their excellent UV and IR transparency. The windows’ 25.4 mm diameter x 1 mm thickness profile allows for compact, lightweight assemblies, making them particularly valuable in aerospace and defence applications requiring strict weight and volume constraints.

Utilising these precise CaF2 Windows in semiconductor manufacturing processes ensures accurate measurements, detection, and inspection of microstructures. Their reliability and design contribute to repeatable results in research laboratories, enabling breakthroughs in photonics, metrology, and device development.