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Thumbnail Filmstrip of Firebird Optics Barium Fluoride (BaF2) Circular Optical Window- 25x4mm BAF2-25x4 Images
Firebird Optics Barium Fluoride (BaF2) Circular Optical Window- 25x4mm BAF2-25x4
Barium Fluoride or BaF2 can be used in many applications due to its wide transmission range that goes from the deep UV to the far infrared range. BaF2's main standout is its resistance to high-energy radiation and low index of refraction of 1.48, which makes it so that AR coatings are unnecessary. While, these windows can but used in temperatures up to 800ºC, it must be in a dry environment or else the moisture will damage its transmission properties in the UV range.
Typically, BaF2 is used to detect X-rays, gamma rays and other high energy particles as it is a fast scintillator.
Firebird provides these in several uncoated stock configurations but can provide customized and coated to your specifications.
Barium Fluoride (BaF2) Overview:
BaF2 (Barium Fluoride) windows are optical components made from a crystalline material with the chemical formula BaF2. They have a number of properties that make them useful for a wide range of applications, including high transparency in the visible and ultraviolet (UV) spectrums, good hardness and scratch resistance, high chemical stability, and good thermal stability.
In terms of optical properties, BaF2 windows have a high refractive index, which makes them ideal for use in optical systems that require high levels of light gathering. They are also highly transparent in the UV spectrum, which makes them ideal for use in UV optical systems. Additionally, BaF2 windows are highly resistant to UV degradation, making them ideal for use in applications that require exposure to UV radiation.
BaF2 windows are also highly resistant to chemical attack, making them ideal for use in harsh environment applications that require exposure to harsh chemicals. They are also capable of withstanding high temperatures, which makes them ideal for use in high-temperature environments.
In terms of dimensional stability, BaF2 windows exhibit minimal change in their physical dimensions when exposed to changes in temperature and pressure, making them ideal for use in high-precision applications. They are also transparent in the infrared (IR) spectrum, making them ideal for use in IR optical systems.
Material Characteristics of Barium Fluoride Windows:
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Optical Transparency: BaF2 has high transmission in the visible and ultraviolet (UV) spectrums, making it ideal for use in a wide range of optical applications.
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Hardness: BaF2 is relatively hard and scratch-resistant, which makes it ideal for use in applications where durability and scratch resistance are important.
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Chemical Stability: BaF2 is highly resistant to chemical attack, making it ideal for use in applications that require exposure to harsh chemicals.
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Thermal stability: BaF2 has good thermal stability and is capable of withstanding high temperatures, making it ideal for use in high-temperature environments.
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UV resistance: BaF2 is highly resistant to UV degradation, making it ideal for use in applications that require exposure to UV radiation.
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Dimensional stability: BaF2 exhibits minimal change in its physical dimensions when exposed to changes in temperature and pressure, making it ideal for use in high-precision applications.
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Infrared (IR) transparency: BaF2 is also transparent in the infrared (IR) spectrum, making it ideal for use in IR optical systems.
Overall, Baf2 is a versatile optical material with a range of properties that make it ideal for use in a wide range of applications, including UV and IR optical systems, high-precision optical instruments, and harsh environment applications.
7 Reasons to Use BaF2 in your Optical Setup:
BaF2 (Barium Fluoride) is used over other infrared (IR) materials in certain applications due to its specific properties and performance advantages. Some reasons for using BaF2 over other IR materials include:
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High IR transparency: BaF2 has a high transmission in the IR spectrum, making it ideal for use in IR optical systems.
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High UV transmission: BaF2 also has high transmission in the ultraviolet (UV) spectrum, making it ideal for use in UV optical systems.
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Good thermal stability: BaF2 has good thermal stability and is capable of withstanding high temperatures, making it ideal for use in high-temperature environments.
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Chemical stability: BaF2 is highly resistant to chemical attack, making it ideal for use in applications that require exposure to harsh chemicals.
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Hardness: BaF2 is relatively hard and scratch-resistant, making it ideal for use in applications where durability and scratch resistance are important.
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Dimensional stability: BaF2 exhibits minimal change in its physical dimensions when exposed to changes in temperature and pressure, making it ideal for use in high-precision applications.
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Availability: BaF2 is readily available and can be produced in large quantities, making it a cost-effective solution for many applications.
Overall, BaF2's high IR transparency, UV transmission, thermal stability, chemical stability, hardness, dimensional stability, and availability make it a suitable material for certain applications over other IR materials. The specific requirements of a particular application will determine whether Baf2 or another material is the best choice.Barium Fluoride (BaF2) Specs:
Specifications
| Wavelength range: 200-12µm | Coating: Uncoated |
| Diameter tolerance: ±0.1mm | Surface Quality: 60/40 |
| Thickness tolerance: ±0.2mm | Paralellism: <3 arc minute |
| Clear Aperture: 90% | Density: 3.18g/cm3 |
| Melting point: 1360ºC | Young's Modulus: (GPa): 53 |
| Coefficient of Thermal Expansion: 18.1 x 10-6/°C | Knoop Hardness: 82kg/mm2 |
All returns must be authorized by Spectra Services in order to insure proper credit and must be requested within 30 days of purchase. All returns are subject to a minimum 15% restocking charge. For returns not due to error on behalf of Spectra Services, the customer is responsible for all transportation fees related to the returned product. To ensure proper credit, each product return must include the following information:
- Customer name and address
- Purchase order number
- Spectra Services shipping order number
- Date of invoice
- Item number of returned item(s)
- Spectra Services return authorization number (RMA)
- Reason for return
Non-Returnable Goods
Unfortunately, Spectra Services is unable to accept the following returns at this time:
- Products not in completely resalable condition (including products with damaged, missing, or defaced labeling or packaging
- Chemicals, reagents, diagnostics, sterile, or any controlled products (unless products do not meet specification
- Laboratory apparatus or instruments that have been used or are without the original packaging, labeling and operating manuals
- Refrigerated products or other perishables
- Products which are not inventoried by Spectra Services and are not able to be returned to the manufacturer
- Products purchased on a special order
- Products not purchased from Spectra Services
- Products with an expired shelf life or an expiration date too short for resale
- Discontinued products
Spectra Services reserves the right to review this policy on a case-by-case basis.
Pre-Owned Products
Upon receipt of the pre-owned product(s), the customer has one week to evaluate the product to ensure it meets their expectations. If for some reason the customer decides to return the product, they may do so at any point during those seven (7) days for a full refund. No restocking fee will be assessed, however, the customer is responsible for the return shipping costs. Full credit will be issued upon receipt and inspection of the item(s) to ensure equipment was returned in the same condition it was initially shipped out in.
Important Information
All exchanges and returns require the completion of a Return Merchandise Authorization (RMA) form. Once completed, please return the merchandise immediately as the RMA number is only active for ten (10) days from the date of issuance.
Charges associated with returning items are the responsibility of the customer unless the item(s) arrived defective, damaged, or incorrect.
Spectra Services highly recommends that return packages be insured for full value and packaged securely to prevent shipping damage.
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249 David Parkway
Ontario, NY 14519 US
Phone: 585-265-4320
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I received a damaged shipment. What can I do?
Accidental damage during shipment can sometimes happen. When you take delivery of your freight, please inspect thoroughly for any visible damage to the outside of the shipping container before signing for it. If there are multiple pieces to the shipment, please account for all them. Should you find that any of the products are damaged or missing after receipt, contact us within three days to address the matter.
I'd like to make a return. How do I do that?
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Can you guarantee pricing and availability?
While we attempt to list and provide you the most up-to-date pricing, we reserve the right to make changes. Additionally, we cannot guarantee that we will always have a product in stock, but we do our best to accommodate your needs. If you have questions regarding pricing or availability, please do not hesitate to ask.
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Our "List Price" represents the full retail price as suggested by the supplier or manufacturer, the price estimated based on comparable items offered elsewhere in the marketplace, a former price the item was offered for by Spectra Services, or the price estimated in accordance with industry standards. Please note that we do our best to provide accurate list prices, and that it may vary by geographic location.
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