Production and service Thallium and silver halogenides KRS-5 monocrystals (TlBr-TlI)

KRS-5 monocrystals (TlBr-TlI)

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

Optical properties:

Transmission band, mcm	0,56 - 52
Spectral transmission coefficient,%
at wave length of 0,63 mcm	55
at wave length of 2 - 25 mcm	68
Refractive index in wave length range of 0,63 - 10,6 mcm	2,57 - 2,37
Optical homogeneity at wave length of 0,63 mcm	2 ·10^-5
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 -25^оС), g/cm³	7,371
Melting temperature, ^оС	412
Coefficient of thermal expansion (-50 - +100 ^оС), 106 degree^-1	61-58
Heat resistance,^оС	55-85
Knupp microhardness, kg/mm²	40,2

Acoustooptical properties:

Modulus of acoustooptic figure of merit М₂, 1015 m².sec³/kg

1150-1200

Chemical properties:

Composition, mass.%
TlBr	57,5
TlI	42,5
Solubility, g/l	0,5

Size of delivered samples:

Diameter, mm	5-120
Thickness, mm	1-1005

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 TlBr and TlJ high purity salts by Stockbarger method in ampoules made of heat-resistant glass having diameter up to 50 mm, height up to 120 mm.

KRS-5 monocrystal transmission spectrum