KRS6(CRYSTRAN) Refractive Index

Optical constants (n, k) of KRS6(CRYSTRAN), covering 0.60 – 2.00 μm wavelength range.

Range 0.600 – 2.000 μm
Data Points 7

Optical Constants at Key Wavelengths

589.3 nm (Na-D)
n = 2.3294
k = 0.0000

n, k Dispersion Curves

Data Table (Sampled)

Wavelength (μm)nk
0.60002.329400.00000
0.70002.298200.00000
0.80002.266000.00000
0.90002.251000.00000
1.00002.240400.00000
1.50002.214800.00000
2.00002.205900.00001

Sampled data (7 points total). Click "Download Full CSV" for complete data.

Notes

TlBr40Cl60
KRS-6 has few applications. Occasionally, it is required for research purposes.

KRS-6 crystals are grown by the sealed-ampoule Stockbarger technique. Starting materials of the highest purity are selected to ensure that there are no anionic absorption bands between 2 and 16 microns and all crystals are checked for quality by using a pathlength of 120mm. Thallium salts are toxic, and KRS6 has enough solubility to require extreme caution. Careful handling with plastic gloves covered with soft cotton gloves as appropriate to delicate optics is required.

REFERENCES:

(1) Hettner and Leisegang; Optik, V3, p305, 1948

(2) Combes, Ballard, McCarthy: J.Opt Soc.Am. V41, p 215, 1951

(3) Handbook of Optical Constants, ed Palik, V3, ISBN 0-12-544423-0

References

Crystran Ltd. The Crystran handbook of infra-red and ultra-violet optical materials (5th edition, 2023)
See also Crystran KRS6 online data sheet

Related Materials (Specs)

4786 (NIKON i-line glass) 5165 (NIKON i-line glass) 5742 (NIKON i-line glass) 5859 (NIKON i-line glass) 7054 (NIKON i-line glass) acrylic double matching liquid

Need to measure KRS6(CRYSTRAN) thin film thickness?

Acuitik film thickness measurement systems offer sub-nanometer non-contact precision.

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