eo_logo
 
Product added to cart

38.1mm Dia., 4mm Thick, Uncoated, ISP Optics Barium Fluoride (BaF2) Window | BF-W-38-4

See More by ISP Optics
×
Stock #24-500 Clearance 10 to 12 days
×
Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
₹11,963 ₹23,925
Qty 1+
₹11,963 ₹23,925
Volume Pricing
Request Quote
Get Product Downloads
Abbe Number (vd):
81.78
Axis Orientation:
Random
Bevel:
Protective as needed
Clear Aperture (%):
85
Clear Aperture CA (mm):
32.38
Diameter (mm):
38.10 +0.00/-0.13
Thickness (mm):
4.00 ±0.13
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
18.1
Density (g/cm3):
4.89
Edges:
Fine Ground
Index of Refraction nd:
1.48
Knoop Hardness (kg/mm2):
82
Operating Temperature (°C):
Maximum: 800
Parallelism (arcmin):
<3
Poisson's Ratio:
0.343
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Flatness (P-V):
Surface Quality:
40-20
Type:
Protective Window
Wavelength Range (nm):
200 - 12000
Young's Modulus (GPa):
53
Model Number:
BF-W-38-4

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 240:

Product Family Description

  • Excellent Transmission from 0.2 - 12μm
  • Resistant to High-Energy Radiation
  • High Transmission without AR Coatings

ISP Optics Barium Fluoride (BaF2) Windows provide excellent transmission from 0.2- 12μm without the need for an Anti-Reflection (AR) coating due to its low index of refraction. Barium Fluoride has similar physical properties to Calcium Fluoride, but features higher resistance to high-energy radiation. This makes Barium Fluoride ideal for vacuum UV (VUV) applications such as thermography or laser spectroscopy where high radiation resistance is required. ISP Optics Barium Fluoride (BaF2) Windows can be used up to 800°C in a dry environment, but prolonged exposure to moisture can degrade transmission in the ultraviolet range.

Note: These optical windows are very sensitive to thermal shock.

Filter

Anti-Reflection (AR) Coatings

Anti-reflection (AR) coatings are applied to optical components to increase throughput and reduce hazards caused by back-reflections.

View Now

An Introduction to Optical Coatings

Optical coatings are used to influence the transmission, reflection, or polarization properties of an optical component.

View Now

Advantages of using engineered chalcogenide glass for color corrected, passively athermalized LWIR imaging systems

Infrared Light

Optical Engineer Andrew Fisher explains how you can see the "invisible" light, or infrared light, from your own TV remote.

View Now

Short Wave Infrared (SWIR)

Beam Displacement Calculator

Optical Windows Review

Optical Windows provide protection between an optical system or sensitive electronics and an outside environment.

View Now

Understanding Optical Windows

Determine how to select an optical window based on its material transmission, thermal and mechanical properties, and other specifications at Edmund Optics.

View Now

I need a window for imaging underwater. The water is filtered and at room temperature with a very small amount of detergent in it. It is flowing at low speed. Will a MgF2 coated window survive this for a few years?

Advantages of Using Meniscus Lenses in Infrared Applications

Meniscus lenses offer superior performance compared to plano convex lenses in IR applications. Find out the benefits of using a meniscus lens at Edmund Optics.

View Now

The Correct Material for Infrared (IR) Applications

Using an Infrared Application? Discover the importance of choosing the right material and comparisons of each at Edmund Optics.

View Now

Is it okay to clean an infrared lens, for example one made of germanium, with ethanol?

Infrared (IR) Spectrum

Hyperspectral & Multispectral Imaging – TRENDING IN OPTICS: EPISODE 7

Hyperspectral and multispectral imaging are imaging technologies that capture information from a broader portion of the electromagnetic spectrum.

View Now

UV vs. IR Grade Fused Silica

UV grade fused silica is ideal for UV and visible applications, but IR grade fused silica has better transmission in the IR due to a lack of OH- impurities.

View Now

What is SWIR?

Have a question about short-wave infrared (SWIR)? Find definitions, application uses, and examples at Edmund Optics.

View Now

Hyperspectral and Multispectral Imaging

Are you trying to gauge depth of field in your imaging system? Take a closer look at this article on depth of field calculations at Edmund Optics.

View Now

You offer many substrates for UV and IR applications. How do I know which is best for me?

Optical Glass

Choosing the right optical glass is important. Find out factors and properties on how to select the right optical glass at Edmund Optics.

View Now

Surface Accuracy

BBAR Coating

Removing Protective Plastic Coating

A protective plastic coating protects a variety of our flat optics, such as optical windows, optical mirrors, and beamsplitters, from scratches during shipping.

View Now

Understanding Surface Quality Specifications

The surface quality of optical components the scattering off of its surface, which is especially important in laser optics applications.

View Now

Anti-Reflection (AR) Coating

Bevel

Parallelism

Seamed Edge

Introduction to Basic Ray Optics

An understanding of refraction and basic ray optics is a critical foundation for understanding more complicated optical concepts and technologies.

View Now

Surface Flatness

Transmission

Edmund Optics Global Manufacturing Facilities

Edmund Optics® (EO) manufactures millions of precision optical components and subassemblies every year in our 5 global manufacturing facilities.

View Now

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Learn about the metrology that Edmund Optics® uses to guarantee the quality of all optical components and assemblies.

View Now

How do I clean my optics?

Clear Aperture (CA)

Surface Quality

 
Sales & Expert Advice
 
or view regional numbers
Easy-to-Use
QUOTE TOOL
enter stock numbers to begin