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 -25оС), 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
