SPECIFICATIONS

Concentration

Nd:1.0at%~1.1at%, Ce:0.05at%~0.1atm%

Orientation

<111> or <100>±5°

Dimension

Diameter:1mm~40mm,Length:0.3mm~150mm (Customized  available)

Dimension Tolerance

Φ:+0/-0.04mm,L:+0.5/-0mm

Perpendicularity

≤5′

Parallelism

≤10″

Chamfer

0.15±0.05mm

Clear Aperture

>95%

Scratch Quality

10/5(MIL-PRF-13830B)

Barrel finish

Fine Ground, Polishing, Grooving

Flatness

≤λ/10@632.8nm

Wavefront Distortion

≤λ/10 per inch@632.8nm

Extinction Ratio

≥30dB

Coating

AR coating:R<0.15%@1064nm,R<0.5%@808nm,  R<0.15%@532nm

PR coating :R=(10~90)%±2%@1064nm

HR  coating:R>99.8%@1064nm,R>99.8%@808nm

Damage Threshold

≥1GW/cm2@1064nm,10ns,10Hz

OPTICAL PROPERTIES

Laser Transition

⁴F_3/2→⁴I_11/2

Laser Wavelength

1064nm

Photon Energy

1.86×10^-19J@1064nm

Emission Line-width

4.5Å@1.064μm

Emission Cross Section

2.7~8.8×10^-19cm²@Nd1at%

Fluorescence Lifetime

230μs@Nd1at%

Absorption Wavelength of Diode Pumped

808nm

PHYSICAL AND CHEMICAL PROPERTIES

Crystal Structure

Cubic

Melting Point

1970°

Density

4.56±0.04g/cm³

Specific Heat

0.59J/gNaN³@0~20℃

Elasticity Modulus

310GPa

Young’s Modulus

3.17×10⁴Kg/mm²

Mohs Hardness

8.5

Poisson’s Ratio

0.3

Tensile Strength

0.13~0.26GPa

Thermal Shock Resistance

790W/m

Thermal Expansion Coefficient

<100>orientation:8.2×10^-6/K@0~250°C

<110>orientation: 7.7×10^-6/K@0~250°C

<111>orientation:7.8×10^-6/K@0~250°C

Thermal Conductivity

14W/m/K@20℃

10.5W/m/K@100℃

Thermal Optical Coefficient

7.3×10^-6/K

Refractive Index

1.8197@1064nm

Solubility

Insoluble in water, slightly soluble  in ordinary acid