Yttrium Aluminum Garnet Single Crystal

(Undoped – Y₃Al₅O₁₂, YAG)

Undoped, Yttrium Aluminum Garnet (YAG) Single Crystal is an excellent material for UV-IR optical windows, used particularly for high temperature and high energy density applications.

The mechanical and chemical stability is comparable to Sapphire (Al₂O₃) crystal, but Undoped, Yttrium Aluminum Garnet is unique with non-birefringence and available with higher optical homogeneity and surface quality.

Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser crystal is one of the most popular solid-state laser materials of today. Yttrium Aluminum Garnets doped with Erbium and Ytterbium ions have been used for solid-state and diode-pumped lasers.

Formula                                                           Y₃Al₅O₁₂

Crystal Growth Method                                 Czochralski (CZ)

Crystal Structure                                            Cubic

Growth direction                                             [111]

Color                                                                 Colorless

Density                                                             4.55 gm/cm³

Melting Point                                                   1970^oC

Lattice Constant                                              a = 1.2005 nm

Transmission Range                                       250 – 5000 nm

Mohs Hardness                                               8 - 8.5

Thermal Conductivity                                    143 W/m.K @20^oC

Thermal Expansion                                        6.9 x 10^-6/^oC

Available sizes: 10 mm x 10 mm, 12.7 mm, 25.4 mm, 50.8 mm diameters

Available thicknesses: 0.5 mm to 12 mm

Surface Finishes: As Cut, 1 Face Polished, 2 Faces Polished (Ra < 10 Å)

Available Orientations: (100), (111), (110); (+/- 0.5^o)