Phone:   +49 (0) 5971 - 4010179

E-mail:    sales@surfacenet.de

Feedback

Stock List Crystals & Substrates

Stock List Targets

Properties

Parameter unit

Values

Molecular weight

126.97

Mean dislocation density

cm²

10³

Syngony

Rhombic

Spatial group

Pnma

Unit sell parameters

Å

a = 5.47
b = 9.39
c = 4.42

Refraction indexes

Ng = 1.753
Nm = 1.747
Np = 1.744

Density

g/cm³

3.79

Moh’s hardness

8.5 

Axial characteristics

Biaxial 

Melting point

^oC

1870

Thermal conductivity

W/cm^oK

0.23

Color

Green (for daylight),
Red (for artificial lightening)

Al_2O4:Cr³⁺   _PROPERTIES

Cr⁴⁺ concentration 

at%

0.03 – 1.0

Stimulated emission cross-section at 300 K

cm²

3.0 ´ 10-¹⁹

Lifetime

sec

260 ´ 10-⁶

Optical loss (l=  750 nm)

cm^-1

0.001 - 0.003

Wavelengths of operation in CW and pulsed mode 

mm

0.70 – 0.82

BeAl_2O4:Cr³⁺  _{LASER RODS}

Configuration of rod’s cross section

Round

Sizes and processing

Diameter tolerance

mm

+/- 0.1

Length tolerance

mm

+/- 0.5

Non-parallelism of end faces

10”

Surface finish

Scratch-dig

10-5

Flatnes

l/10

Orientation tolerance

< 0.5^o

Rod’s orientation

[001]

Diameter

mm

4 – 10

Length

mm

60 - 120

 Up