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Knight Optical(UK) Ltd - [email protected] - +44 (0)1622 859444

KRS 5N optical components

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KRS-5 (Thallium Bromide-Iodide) is used for transmission in the visible and IR spectrums. The material has relatively low absorption in the Mid-IR range, a wide transparency, a low solubility in water and a comparatively high refractive index making it desirable in internal reflection components. KRS-5 has a tendency to cold flow over time.

KRS 5 is used primarily for Attenuated Total Reflection (ATR) prisms in IR spectroscopy and as IR windows and lenses. Examples of KRS-5 applications include transmission windows for gas and liquid sample cells in Fourier Transform Infra-Red (FTIR) spectrophotometers. KRS-5 has a broad transmittance of 0.6 - 40µm, peaking at over 68% between 2-25μm, and has a hardness of HK40. It is used as a substrate for infra-red holographic polarizers. The refractive index varies from about 2.68 at 0.6µm to about 2.2 at 40µm. The soft surface requires a coating to prevent the crystal from being scratched and dissolved by water.

Thallium Bromine-Iodide is considered toxic and must be handled with extreme care.

Knight Optical supply a range of quality KRS 5N optical components including KRS 5N windows, KRS 5N prisms, and KRS 5N blanks either from stock or bespoke custom made to your specification for a range of applications. Every component is individually tested by our highly skilled technicians in our state of the art metrology lab to ensure all components meet our high quality standards.

Contact our multilingual technical sales team and discover how Knight Optical’s high quality KRS 5N optical components and service can improve your instrumentation and supply chain experience.

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Our Multi-Lingual Sales Team are here to help with your requirments:

UK +44 (0)1622 859444
UK +44 (0)1622 850614
UK +44 (0)1622 851078
+1 401 583 7846

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