Explore Potassium Bromide (KBr) optical material, perfect for infrared spectroscopy applications. Find high-quality KBr windows and components at Crystran.

Oct 21, 2024 · Thorlabs' Potassium Bromide (KBr) Precision Windows are available in Ø12.5 mm and Ø25 mm sizes. Potassium bromide features high transmission across an extremely broad wavelength range as well as high resistance to mechanical shock and temperatures up to 300 °C.

Potassium Bromide (KBr) Windows are ideal for FTIR spectroscopy. KBr has a slightly more extensive spectral range than Sodium Chloride (NaCl) and has excellent transmission from 250nm – 26μm. Its index of refraction varies from 1.46 - 1.59 over this range.

For those interested in enhanced performance, we offer both uncoated and coated potassium bromide glass options, including broadband antireflective (BBAR) coatings, to improve the efficiency of your optical systems. This makes our potassium bromide products adaptable to a broad range of applications, ensuring you receive optics that meet your ...

Potassium Bromide is one of the most useful materials for general purpose spectroscopic windows and applications where sensitivity to moisture is unimportant.

Potassium Bromide (KBr) is a crystalline compound of potassium and bromide with a rock-salt type structure. It is used in optical applications in the UV, Visible, MWIR, and LWIR waveband regions. KBr has a melting point of 730°C and must be used in a moisture-free environment as the polished surfaces degrade in a moist atmosphere.

Potassium Bromide (KBr) is a material commonly used in FTIR spectroscopy (drilled KBR windows). Potassium Bromide is water soluble and KBr windows must be protected against moisture degradation of polished surfaces.

Mar 19, 2025 · Potassium Bromide (KBr) is commonly used in FTIR spectroscopy and is mostly sought for its excellent transmission range from the UV to the long IR range. KBr is similar to Sodium Chloride (NaCl) but has a slightly expanded spectral range.

KBr Crystals such as sodium chloride, potassium bromide and potassium chloride are uniform, bright and high transmittance within 0.250-20 μm when thickness less than 10mm, and no impurity absorption.

ISP Optics Potassium Bromide (KBr) Windows feature excellent transmission across a broad wavelength range from the Deep UV (DUV) to the Long-Wave Infrared (LWIR). These windows are highly resistant to mechanical shock, can be easily …