Optical constants of CRYSTRAN - optical materials
CdTe
Complex refractive index (n+ik)
Derived optical constants
Conditions
temperature: 300
Comments
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
Data
Additional information
Properties of CdTe
density:
-
value: 6200
thermal_dispersion:
-
type: constant
value: 5.0E-5
thermal_expansion:
-
temperature: 293
value: 5.9E-6
hardness:
-
type: Knoop
value: 530000000
melting_point:
-
value: 1365
thermal_conductivity:
-
temperature: 293
value: 6.2
youngs_modulus:
-
value: 36520000000
poissons_ratio:
-
value: 0.41
solubility:
-
value: 0