-40%
Barium Fluoride BaF2 rectangular window, new 4.0" x 0.8" x 0.2"
$ 184.8
- Description
- Size Guide
Description
New Barium Fluoride (BaF2
) Rectangular Window in Original Sealed Packaging. Optically Polished both sides, edges fine ground
Size:
102.72 mm Length x 20.19 mm Width x 4.0 mm Thickness
(4.04" Length x 0.795" Width x 0.16" Thickness)
Both ends rounded to R 0.40" radius
Excellent Transmission from 200 nm - 12μm
Resistant to High-Energy Radiation
High Transmission without AR Coatings
Barium Fluoride (BaF
2
) Windows can be used in a variety of applications, such as infrared spectroscopy, due to their wide broadband transmission that extends from the deep ultraviolet to the long-wave infrared. Barium fluoride’s low index of refraction of 1.48 provides high transmission without the need for anti-reflection coatings. Barium fluoride windows can be used up to 800°C in a dry environment, but prolonged exposure to moisture can degrade transmission in the vacuum ultraviolet range. While barium fluoride windows are less resistant to water than calcium fluoride, BaF
2
windows are the most resistant optical fluoride to high-energy radiation. BaF
2
has a Knoop hardness of 82.