SPECIFICATIONS

Clear Aperture

>95%

Concentration

0.1at%~2.5at%

Orientation

<111> or <100>±5°

Dimension

Diameter:1~50mm,  Length:0.3~220mm (Customized available)

Dimension Tolerance

Φ:+0/-0.04mm,L:+0.5/-0mm

Perpendicularity

≤5′

Parallelism

≤10″

Chamfer

0.15±0.05mm

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@1064nm

Emission Cross Section

2.7~8.8×10-475px2@1at%Nd

Fluorescence Lifetime

230µs@1at%Nd

Absorption Wavelength of Diode Pumped

808nm

Pump Absorption Bandwidth

1nm

Main Pump Wavelength Range

400~850nm

PHYSICAL AND CHEMICAL PROPERTIES

Crystal Structure

Cubic

Melting Point

1970℃

Density

4.56±0.04g/cm³

Specific Heat

0.59J/gNaN³@0~20℃

Elastic Modulus

310GPa

Young’s Modulus

3.17×10⁴Kg/mm²

Mohs Hardness

8.5

Poisson’s Ratio

0.25

Thermal Expansion Coefficient

<111> orientation:7.8x10^-6/K@0~250℃

<100> orientation:8.2x10^-6/K@0~250℃

<110> orientation:7.7x10^-6/K@0~250℃

Thermal Conductivity

14W/m/K@20°C

10.5W/m/K@100°C

Thermal Optical Coefficient

7.3 x 10^-6/K

Refractive Index

1.82@1064nm

Stimulated Emission Cross  Section(nmNaN-1)

2.8x10^-19cm2

Single Path Loss

0.075px^-1@1064nm