Nd³⁺ Concentration

1.0± 0.1at.%

Structure

Zircon Tetragonal, space group D_4h-I4/amd, a=b=7.212, c=6.350

Space Group

I4₁/amd

Density

5.48g/cm³

Mohs hardness

4.6-5

Thermal Conductivity

 11.7W/(mxK), <110>

Lasing Transition

⁴F_3/2 –⁴I_11/2

Lasing Wavelength

1062.9nm

Emission Cross Section, (E ½½ c, at 1064 nm)

7.6x10^-19cm²

Absorption Cross Section, (E ½½c, at 808 nm)

4.9x10^-19cm²

Linewidth

3 nm

Relaxation Time of Terminal Lasing Level

100ms

Absorption Coefficient, (E ½½ c, at 808 nm)

74cm^-1

Nd:YVO4

Nd:GdVO4

Nd:YAG

Laser wavelength

1064.3nm

1062.9 nm

1064.2nm

1342.0 nm

~1340 nm

1338.2 nm

Emission bandwidth

0.8 nm

No data

0.45 nm

Effective laser cross section @ 1064 nm

15.6 x 10^-19 cm^-2

7.6 x 10^-19cm^-2

6.5 x 10^-19 cm^-2

Polarization

Parallel to c-axis

Parallel to c-axis

unpolarized

Radioactive lifetime (1%Nd dopant)

~ 100 µs

~ 95 µs

230 µs

Pump wavelength

808.5 nm

808.4 nm

807.5 nm

Peak pump absorption (1%Nd dopant)

~ 41 cm^-1

~ 57 cm^-1

Thermal conductivity

5.1W/mK

11.7W/mK

14W/mK

Nd concentration range

0.1 - 3.0%

0.1 - 3.0%

0.1 - 2.0%

Wavefront Distortion

< l/8 at 633 nm

Scattering

invisible, probed with a He-Ne laser

Dimensional tolerance

+0.1/-0.1 mm

Orientation tolerance

+/-0.5°

Surface quality

10/5 S/D per MIL-O-13830A

Flatness

l/10 at 633 nm

Clear Aperture

> Central 90%

Parallelism

< 10 arc sec.