CdTe(CRYSTRAN) Refractive Index

Optical constants (n, k) of CdTe(CRYSTRAN), covering 0.80 – 2.00 μm wavelength range.

Range 0.800 – 2.000 μm
Data Points 3

Optical Constants at Key Wavelengths

n, k Dispersion Curves

Data Table (Sampled)

Wavelength (μm)nk
0.80002.876000.00000
1.00002.840000.00000
2.00002.713000.00000

Sampled data (3 points total). Click "Download Full CSV" for complete data.

Notes

CdTe is rarely used because of its toxicity. The finished optics are not particularly hazardous but should be handled with care. However, difficulties with processing cadmium compounds means that very few optical companies will cut and polish the material. Crystran Ltd does NOT supply CdTe. This data is provided for reference only. A form of CdTe was originally utilised as the obsolete Kodak designation of IRTRAN-6

CAUTION: Cadmium salts are TOXIC and should be handled with care.

REFERENCES:

(1) Handbook Optical Constants, ed Palik, V1, ISBN 0-12-544420-6

(2) NIST USA data

(3) Hawkins, Sherwood, Djotni: Mid IR Filters for astronomical and remote sensing instrumentation. Invited Paper SPIE Conference Glasgow 2008

References

Crystran Ltd. The Crystran handbook of infra-red and ultra-violet optical materials (5th edition, 2023)
See also Crystran CdTe 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 CdTe(CRYSTRAN) thin film thickness?

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

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