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YAG window crystals Yttrium Aluminum Garnet

Pure YAG Yttrium Aluminum Garnet is a new substrate and window material that can be used for both UV and IR optics. It is particularly useful for high-temperature and high-energy applications. The mechanical and chemical stability of YAG is comparable to sapphire crystal, but YAG is unique with no birefringence which is extremely important for some optical applications.

  • Product Origin:

    China
  • Shipping Port:

    Fuzhou, China
  • Lead Time:

    3-4weeks
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  • Product Detail

Descriptions:

Pure YAG Yttrium Aluminum Garnet crystal is a new substrate and window material that can be used for both UV and IR optics. It isparticularly useful for high-temperature and high-energy applications.


Main Applications:

1) Laser igniters

2) Laser-induced breakdown spectroscopy

3) Optical substrates and windos

4) Particle image velocimetry

5) Cavity ring-down spectroscopy

6) Transparent electronic substrates

7) Right angle prism

Advantages:

1) Transmission in 0.25-5.0mm, no absorption in 2-3mm

2) High thermal conductivity, 10 times better than glasses

3) Extremely hard and durable

4) Non-birefringence

5) Stable mechanical and chemical properties

6) High bulk damage threshold

7) High index of refraction, facilitating low aberration lens design


Basic properties:

Chemical Formula

Y3Al5O12

Crystal Structure

Cubic

Lattice Parameters

12.01 Å

Melting Point:

1950 °C

Density, g/cm3

4.56

Mohs Hardness

8.5

Modulus of Elasticity

310GPa

Tensile Strength

0.13~0.26GPa

Thermal Expansion Coefficient

7.8 x 10-6/ <111>

Thermal Conductivity

14W/m/K

Thermal Optical Coefficient (dn/dT)

7.3 × 10-6/

Thermal Shock Resistance

790W/m


HGO offers YAG specifications:

Orientation:

<111> crystalline direction

Wavefront Distortion:

λ/4 per inch @ 632.8 nm

Dimension Tolerances

rods with diameter: +0.0/-0.05 mm , Length: ±0.1 mm

Surface Quality:

10/5 Scratch/Dig MIL-O-1380A

Parallelism:

< 10

Perpendicularity:

< 10

Clear Aperture:

> 90%

Surface Flatness:

< λ/8 @ 632.8 nm

Chamfer:

< 0.1 mm @ 45deg.

Size

Upon customer request

Coating

Uncoated or AR upon customer’s request

Quality Warranty Period

One year under proper use

Slabs, thread rod, Er:YAG, Yb:YAG,Cr:YAG, Ce:YAG, Tm:YAG, Ho:YAG and other ion doped YAG-based crystals are also available upon request.


Why Choose HGO ?

HG OPTRONICS.,INC. supplies high purity yttrium aluminum garnet YAG crystals. Based on over 13 years’processing experiences and advanced processing techniques, high quality YAG windows or prism with high precision is achievable. In addition, we can also produce other types of window crystals like MgF2 crystals, BaF2,LiF Crystals, etc.

YAG crystals also work as a perfect endcap for different ions doped YAG based laser crystals. HGO has advanced diffusion bonding technology and various YAG and ions doped diffusion bonding crystals are available from stock or upon request.

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