CY2491 Yttrium Aluminium Garnet (YAG) Crystal Substrates

Catalog No. CY2491
Size dia2” ×0.5mm, 10×10×0.5mm
Material YAG
Type single crystal, synthetic
Orientation (100), (110), (111), +/- 0.5 degree
Thickness 0.5 mm or 1.0 mm or customized

Yttrium Aluminium Garnet Crystal Substrate is a substrate material that can be used for UV and IR optics. SAM can offer a variety size of YAG Single-crystal Substrate. We have a professional sales team to offer a fast response within 24 hours and warm service.

Related products: LiAlO2 Crystal Substrate, LAST Crystal Substrate, LiF Crystal Substrate, NdGaO3 Crystal Substrate

Yttrium Aluminium Garnet Crystal Substrate Description

Yttrium Aluminium Garnet Crystal Substrate is a substrate material that can be used for UV and IR optics. Sapphire has been the substrate of choice for these applications; however, it is difficult to polish Sapphire to a 10-5 scratch-dig finish and is also slightly birefringent. Yttrium Aluminium Garnet Crystal Substrate is non-birefringent and can be polished to a 10-5 scratch surface quality.



Yttrium Aluminium Garnet Crystal Substrate Specifications

Optical Property

Refractive Index, at 1.064 µm


Reflection Loss, % for two surfaces at 1.064 µm


Termooptical Factor (dn/dT), at 633 nm

7.3 x 10-6 x °K-1

Density, g/cm3 (20°C)



Insoluble in water

Type of Material

single crystal, synthetic

Crystal Structure


Melting Point, at °C


Thermal Conductivity, W x cm-1 x °K-1


Specific Heat Capacity, J/(kg · K) at 0 °C


Dielectric Constant


Young´s Modulus (E), GPa


Hardness (Mohs)



Yttrium Aluminium Garnet Crystal Substrate Applications

Yttrium Aluminium Garnet Crystal Substrate is commonly used for high-temperature and high-energy applications, in industrial, medical, and scientific fields due to high strength and other advantages, like physical hardness, high bulk damage threshold, a high index of refraction, excellent thermal conductivity and no absorption in the 2-3 µm range.


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