Nd Dopant Concentration

High

1.1±0.1at%

Middle

0.9±0.1at%

Low

0.7±0.1at%

Crystallographic Orientation

[111]within 5 ^o

Wavefront Distortion

≤0.125λ/inch

Extinction Ration

Φ3 -Φ6.35mm: ≥28dB

Φ7-Φ10mm: ≥25dB

Φ 11- Φ 13mm: ≥22dB

Φ 14- Φ 15mm: ≥18dB

Dimensional Tolerances

Diameter

± 0.05mm

Length

± 0.5mm

End Surface Finish

Flatness/Sphericity

≤0.1 wave

Scratch-Dig

10-5 (per MIL-O-13830A)

End Configuration

Parallelism

≤ 10"

Perpendicularity

≤ 5′

Chamfer

Depth:

0.05±0.03 inch

Angle:

45±5 ^o

Coating

Anti-reflection, R ≤ 0.25%, or other kinds of coatings upon requirement

Formula

Nd: Y₃AL₅O₁₂

Crystal Structure

Cubic

Moh Hardness

8.5

Melting Point

1970 ^oC

Density

4.55 g/cm³

Atomic Density

1.38 x 10²⁰ atoms/cm³

Thermal Conductivity

0.14Wcm^-1K^-1

Thermal Expansion

6.9 x 10^-6/ ^o C^-1 (111)

Stimulated Emission Cross Section

2.8x10^-19 cm²

dn/dT

7.3 x 10^{-6 o} C^-1

Young's Modulus

3.17x10⁴ kg/mm­­­^-2

Poisson Ratio

0.25

Lasing Wavelength

1064nm

Index of Refraction

1.8197 at 1.0 mm

Fluorescent Lifetime

230 ms

Pumping Wavelength

807.5 nm

Thermal Shock Resistance

790 Wm^-1