YAG

(

Y3Al5O12

)
Eigenschaften 

Y3Al5O12

Transmission Range % 50
Transmission Range

0.2 - 6.2 µm (Thickness 1/0.4 mm)

Refractive Index

1.829452 @633 nm

Reflection Loss 

7.9% @3µm

Density  

4.56 g/cm3

Melting point  

1950°C

Molecular Weight 

593.62

Thermal Conductivity  

13.1 W/(m·K)

Spec. Heat Capacity  

628 J/(kg·K)

Thermal Expansion  

7.5 · 10-6/K @300K)

Hardness (Mohs) 

1350 (Indenter Load 200g) 

Young's Modulus 

280 GPa

Shear Modulus 

113 GPa

Bulk Modulus  

180 GPa

Fracture Modulus 

250 MPa

Elastic Coefficient 

C11 = 333; C12 = 111; C44 = 114 GPa

Dielectric Constant

7.75 @298K

Solubility in Water 

none

Crystal Structure  

single crystal, synthetic  

Crystal Type  

cubic

Lattice Constants 

a = 12.008 Å

Orientation 

111, 100

Poisson Ratio  

0.24

Application  

active laser crystals (dopants: Nd, Tm, Ho, Er, Cr), spectroscopy, vacuum windows, IR optics 

Remarks  

no double refraction therefore suitable as a substitute for sapphire in optical systems and also application as sturdy material for windows

Remarkable 
  • Undoped single crystals are a good alternative to sapphire with a larger transmission range in IR, not birefringent!
  • Hard and chemically stable
  • The higher refractive index makes it easier to construct lens systems with low aberration
  • Maximum possible diameter is 120-140 mm
  • A doped YAG crystal is used as an active laser medium or scintillator crystal
NOTE: Despite careful research, we do not accept any liability for the correctness of the information provided. Liability claims based on the use of the information are excluded in principle.

YAG: Korth Kristalle - Vom Rohkristall zur hochpräzisen Optik. Durchblick für alle Wellenlängen - Seit 72 Jahren züchten wir Kristalle und fertigen daraus hochpräzise optische Komponenten für alle Wellenlängen vom IR- bis zum VUV-Bereich. Unsere Produkte kommen in allen Bereichen zum Einsatz, in denen eine hochentwickelte, präzise technische Ausstattung unerlässlich ist – von der Analytik bis hin zur Medizin- und Raumfahrttechnik.

Contact/Inquiry

Korth Kristalle

Am Jägersberg 3
24161 Altenholz

+49 (0)431 - 36 90 50
+49 (0)431 - 36 90 525

info@korth.de


Contact

Remarkable

  • Undoped single crystals are a good alternative to sapphire with a larger transmission range in IR, not birefringent!
  • Hard and chemically stable
  • The higher refractive index makes it easier to construct lens systems with low aberration
  • Maximum possible diameter is 120-140 mm
  • A doped YAG crystal is used as an active laser medium or scintillator crystal