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All Categories > Magneto Optical Materials - CdMnTe & CdMnHgTe  > Item # Cadmium Manganese Telluride (CdMnTe) Magneto Optical Crystals  
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Item # Cadmium Manganese Telluride (CdMnTe) Magneto Optical Crystals


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The ternary compound Cadmium Manganese Telluride ("CMT") is a magneto-optical material that is ICL's newest crystal product. This magneto-optical material has a giant Verdet constant. Potential applications for this material (as well as CdMnHgTe which is under development ) include Faraday rotation devices (optical isolators in the range 630nm to 1100nm ), LEDs, spintronicss, electro-magnetic interference free devices, field tunable phase shifters, small coupled solar cells for fly-by-light applications, phased array radar with completely fiber-fed antennae, bomb detonators and harsh environment sensors. At the optimal composition, absorption does not increase with pathlength (thickness) although transmission will vary. Absorption is composition dependent. The spectral data shown is for a 2mm thick sample. ICL's standard processing for CdMnTe is flatness of 1 l, parallelism of 30 arc seconds, optical surface quality 60-40, reflection loss with broadband AR coating < 0.05% at 880-1100nm, Max. R 19mm.




 Additional Information   

Optimal Composition:

Cd 0.55 Mn 0.45 Te

Optical Properties - Cadmium Manganese Telluride (CdMnTe) Magneto Optical Crystals

Transmission Range: 630nm to 22µm
Verdet constant: 0.67min/E*cm at 904nm, 7min/E*cm at 630nm
Absorbance: 0.3 cm-1 at 800nm, ~0.2 cm-1 at 904nm, 0.12 cm-1 at 1000nm, <0.1cm-1 at1100nm, 0.02 cm-1 - 0.03 cm-1 at1500nm
Extinction: Emin -28db, Emax -22db
Reflection Loss: 32%at904nm (2 surfaces)

Physical Properties--- Cadmium Manganese Telluride (CdMnTe) Magneto Optical Crystals

Damage Threshold: 3j/cm2
Structure: cubic, Zink blende
Melting Point: ~ 1070° C

Chemical Properties - Cadmium Manganese Telluride (CdMnTe) Magneto Optical Crystals

Solubility: Insoluble in water.


 MORE IMAGES 

·  CdMnTe Random Orientation, 3mm Thick Sample Cd0.55Mn0.45Te

·  CdMnTe 111 Orientation


 DOWNLOADS 

Verdet Constant Brochure
(PDF, 296KB)


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