Contact Us

YAG Crystal

  • Introduction

Undoped YAG Crystal


Undoped YAG Crystal is an excellent material for UV-IR optical windows, particularly for high temperature and high energy density applications. The mechanical and chemical stability is comparable to sapphire crystal, but YAG is unique with non-birefringence and available with higher optical homogeneity and surface quality. Up to 3 YAG boule grown by CZ method, as-cut blocks, windows and mirrors are available from CryLight.

Specifications


Specifications:

Orientation: < 111 > +/-5deg

Diameter Tolerance : +0.0 /-0.1mm

Thickness Tolerance: +/-0.2mm

Surface Quality: better than 10/5 scratch/dig

Parallelism: < 30 arcsec

Flatness: < λ/8 @632.8nm

Perpendicularity: < 5 arcmin

Wavefront Distortion: < λ/2 @632.8nm

Coating: Coating upon Request


Properties:

Crystal Structure Cubic

Density 4.5 g/cm3

Transmission Range 250 - 5000 nm

Melting Point 1970 °C

Specific Heat 0.59 W·s /g /K

Thermal Conductivity 14 W/m /K

Thermal Shock Resistance 790 W /m

Thermal Expansion 6.9x10-6 /K

dn/dT, @ 633nm 7.3x10-6 /K-1

Mohs Hardness ~ 8.5

Refractive Index 1.8245 @ 0.8mm, 1.8197 @ 1.0mm,

1.8121 @ 1.4mm

Related Content
  • Concave Mirror

    Concave Mirror

    February 17, 2017The concave mirror is the reflection imaging, it is not the light through, but the reflection back to the imaging instrument, the light observes the reflection law. A concave mirror is a spherical mir...view
  • Gallium Arsenide Lenses

    Gallium Arsenide Lenses

    February 17, 2017GaAs is semi insulator, which can be used in large power continuous CO2 laser system to replace the zinc sulfide in lens or mirror forms. GaAs is suitable in applications consists of toughness and dur...view
  • Optical Dome

    Optical Dome

    February 17, 2017Glass domes are widely used for commercial applications which require protective boundary between different environments; domes perform as windows, providing protection to electronic sensors or detect...view