Nd:YAG

New Source Technology is a major supplier of this important Crystal for Industrial, Medical, Military and Scientific Laser products. We maintain the highest standards of quality and can deliver products to your exact specifications.

Nd: YAG Crystals

A versatile solid state crystal generally used for a broad range of medical, dental, industrial, and scientific applications.  Nd:YAG efficiently emits at 1064nm and is commonly doubled to emit at 532nm, or higher harmonics at 355, and 266nm.

 

Nd:YAG Product Description

A versatile solid state crystal generally used for a broad range of medical, dental, industrial, and scientific applications.  Nd:YAG efficiently emits at 1064nm and is commonly doubled to emit at 532nm, or higher harmonics at 355, and 266nm.

 
Advantages
  • High Gain
  • Low Threshold
  • High Efficiency
  • Low Loss at
  • 1.06μm
  • High Optical
  • Quality
  • Good Mechanical
  • and Thermal
  • Properties
  • Suitable for High
  • Average
  • Power Lasers

A) Nd concentrations offered are:
0.6 ± 0.1 at %
0.8 ± 0.1 at %
1.1 ± 0.1 at %
1.3 ± 0.1 at %

B) Wavefront distortion is determined by use of a Zygo interferometer system. Wavefront distortion shall be within a maximum λ / 4 per inch of rod length (λ = 632.8 nm) standard and λ / 16 per inch of rod length for Premum Grade.

C) Extinction ratio 25 db minimum.

D) Dimensional / mechanical specifications:

  • Diameter tolerance +.000” / -.002”
  • Length tolerance +.040” / -.000”
  • Rod end polished flat to λ / 10
  • Rod end faces are parallel to within 10 arc seconds
  • Rod end surfaces are perpendicular to the rod axis to within 5 arc minutes
  • Chamfer 0.005” ± 0.003” x 45°
  • Surface Quality 10 - 5 scratch-dig perMIL-O-13830A
  • Rod barrel is fine ground to 55 ± 5 microinches (other barrel finishes available upon request)

E) Rod end faces are anti-reflection coated for a reflectivity of less than 0.25%.
Durability per MIL-C-48497. Total reflective or partial reflective coatings available upon request.Coating damage threshold  exceeds 10 J / cm2.

Refractive Index of YAG

Wavelength(μm)
.8
.9
1.0
1.2
1.4

Index n (25°C)
1.8245
1.8222
1.8197
1.8152
1.8121

YAG Physical and Chemical Properties
Formula:
Molecular Weight:
Crystal Structure:
Moh Hardness:
Melting Point:
Density:
Y3AI5O12
596.7
Cubic
8 - 8.5
1950°C (3540°F)
4.55 g / cm-3
Properties of Nd:YAG at 25°C (1.0 at % Nd)
Property  Value

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-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