:

KRS-6 monocrystals (TlCl-TlBr)

Application:
Optical elements for devices used in infrared technology, acoustooptics, laser technology, billets for optical fibers production.

  

Optical properties:

 

Transmission band, mcm 0,42 - 40
Spectral transmission coefficient,%  
at wave length of 0,63 mcm 65
at wave length of 2 - 25 mcm 72
Refractive index in wave length range of 0,63 - 10,6 mcm 2,33 - 2,17
Optical homogeneity at wave length of 0,63 mcm 5 ·10-4
Coefficient of laser emission volumetric absorption at wave length of 5-6 and 10,6 mcm, cm-1 1÷5 ·10-4

 

Physical properties:

 

Density (20 -25оС), g/cm3 7,192
Melting temperature, оС 424
Coefficient of thermal expansion (-50 - +100 оС), 106 degree-1 53
Heat resistance,оС 300
Knupp microhardness, kg/mm2 30

 

Chemical properties:

 

Composition, mass.%  
TlCl 33
TlBr 67
Solubility, g/l 3,2

 

Size of delivered samples:

 

Diameter, мм 5-150
Thickness, мм 1-1000

 

Delivery capabilities:

 

In the form of boules, kg per month 10-20
In the form of ground windows, pieces per month 500
In the form of polished windows, pieces per month 100

 

Note:
Crystals are grown from TlСl and TlBr high purity salts by Stockbarger method in ampoules made of heat-resistant glass having diameter up to 50 mm, height up to 150 mm.

 

KRS-6 monocrystal transmission spectrum
spectr-krs6(1).jpg