Nd:Ce:YAG

Nd:Ce:YAG

Nd:Ce:YAG crystals Cerium is used as sensitizer for Nd3+ ions because it has strong absorption in UV region. Ce increases transfer to the Nd3+ excited state. At this point – thermal distortion in Nd: Ce:YAG is less and the output laser energy is greater than in usual Nd:YAG with the same pumping parameters. Emission wavelength at 1064 nm and thermal conductivity of the Nd:Ce:YAG crystals are the same as for Nd:YAG.

 

  • Optola offers standard diameters from 1mm to 10 mm with length up to 80 mm.
  • Non-standard sizes are available upon request.

 

Dopant concentration

Nd: 0.9─1.3 atm %, Ce : Nd=1:10

orientation

<111> crystalline direction within 5ºC

Flatness

<λ/10

Parallism

≤10 arc seconds

Perpendicularity

≤5 arc minutes

Surface Quality

10/5 Scratch/Dig

Optical Quality

Interference fringes ≤ 0. 25 λ /inch
Extinction ration ≥ 30dB

Dimensional tolerances

Diameter: +0.1″ Length: ±0.5″
Chamfer:< 0.1 mm @45°

AR-Coating Reflectivity

≤ 0.2% (@1064nm)

Chemical formula

Nd3+: Ce3+: Y3Al5O12

Crystal Structure

Cubic

Lattice Parameters

12.01A

Melting Point

1970℃

Moh Hardness

8.5

Density

4.56 ± 0.04g/cm3

Specific Heat (0-20)

0.59J/g.cm3

Modulus of Elasticity

310GPa

Young’s Modulus

3.17×104Kg/mm2

Poisson Ratio

0.3(est.)

Tensile Strength

0.13~0.26GPa

Thermal Expansion Coefficient

[100]:8.2 × 10-6/℃

[110]:7.7 × 10-6/℃

[111]:7.8 × 10-6/℃

Thermal Conductivity

14W/m/K(@25℃ )

Thermal Optical Coefficient (dn/dT)

7.3×10-6/℃

Thermal Shock Resistance

790W/m

Laser Transition

4F3/2 –> 4I11/2

Laser Wavelength

1.064μm

Photon Energy

1.86×10-19J@1.064μm

Emission Linewidth

4.5A @1.064μm

Emission Cross Section

2.7~8.8×10-19cm-2

Fluorescence Lifetime

230μs

Index of Refraction

1.8197@1064nm

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