Nd:YAG

YAG Physical and Chemical Properties

• Formula: Y3AI5O12
• Molecular Weight: 596.7
• Crystal Structure: Cubic
• Moh Hardness: 8 - 8.5
• Melting Point: 1950°C (3540°F)
• Density: 4.55 g / cm-3
• Refractive Index of YAG at 25C and 1.0 (µm)= 1.8197

Properties of Nd:YAG at 25°C (at 1.0% Nd)

• Formula: Y2.97Nd0.03AI5O12
• Weight % Nd: 0.725
• Nd Atoms / cm3: 1.38 x 1020
• Wavelength: 1.064 mm
• Transition: 4F3/2 — 4I11/2
• Fluorescent Lifetime: 230 µsec
• Thermal Conductivity: 0.14 W cm-1 K-1
• Specific Heat: 0.59 Jg-1 K-1
• Thermal Expansion: 6.9 x 10-6°C-1
• dn / dt: 7.3 x 10-6°C-1
• Young’s Modulus: 3.17 x 104 Kg / mm-2
• Poisson Ratio: 0.25
• Thermal Shock Resistance: 790 Wm-1

Room Temperature Transitions

• 1.052um 46%
• 1.062um 92%
• 1.064um 100%
• 1.065um 50%
• 1.074um 65%
• 1.078um 34%
• 1.105um 9%
• 1.112um 49%
• 1.116um 46%
• 1.123um 40%
• 1.319um 34%

The precentage shown are relative to 1.064nm.

Main Absorbtion Peaks

• 590nm
• 750nm to 770nm
• 790nm to 820nm