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
  • BBO Crystal

    BBO Crystal

    March 14, 2017The BBO Crystal is an efficient NLO crystal for the second, third and fourth harmonic generation of Nd: YAG lasers, and the best NLO crystal for the fifth harmonic generation at 213 nm. Conversion effi...view
  • Asphere Lenses

    Asphere Lenses

    February 17, 2017The complex surface profile of an asphere can significantly reduce or even eliminate spherical aberrations comparing to spherical lenses. Hence, asphericals have been increasingly more widely explored and adopted during the optical design stage. Aspherview
  • Silicon Lenses

    Silicon Lenses

    February 17, 2017Hyperion Optics utilize optical grade silicon which is specified with a resistivity of 10-40 Ohm-cm higher than most semiconductor applications. For CZ grade silicon (Czochralski method) has a absorpt...view