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Erbium-Doped Yttrium Aluminium Garnet (Er: YAG) Laser Crystal

Item Number:
ALB-Er-YAG-CR
Product Name:
Erbium-Doped Yttrium Aluminium Garnet (Er: YAG) Laser Crystal
CAS Number:
[N/A]
Formula:
Er: YAG
Shape:
Wafer (slice / substrate), boule and crystal form
Size:
Custom-made
Quantity:
10pc, 100pc, 1000pc
Supplier:
ALB Materials Inc
Synonyms:

Er: YAG Wafers, Er: YAG Substrate, Er: YAG Slice, Erbium-Doped Yttrium Aluminium Garnet Wafers, Erbium-Doped Yttrium Aluminium Garnet Substrate, Erbium-Doped Yttrium Aluminium Garnet Slice

Price($, USD):

($, USD)Inquiry
Related Products:
Erbium Products,Yttrium Products,Aluminum Products

Erbium-Doped Yttrium Aluminum Garnet (Er: YAG) Crystal | Laser Crystal Material

Highly doped (50%) Erbium YAG is a well-known laser source for producing 2940nm emission, commonly used in medical(e.g. cosmetic skin resurfacing), and dental (e.g. oral surgery) applications due to the strong water and hydroxapatite absorption at this wavelength.

Main properties of Er: YAG Crystal:

Crystal structure Cubic
Crystal lattice parameters 12.01 Å
Orientation <111> or <100> crystalline within 5°
Melt point 1970°C
Hardness mohs 8.5
Density 4.56±0.04 g/cm3
Specific heat 0.59 J/g.cm3
Modulus of elasticty 310 GPa
Young modulus 3.17X104Kg/mm2
Tensile strength 0.13~0.26 GPa
Thermal expansion <100> Direction:  8.2x10-6 /°C(0~250°C)
  <110> Direction:  7.7x10-6/°C(0~250°C)
  <111> Direction:  7.8x10-6/°C(0~250°C)
Thermo-optical coeffecient 7.3×10-6/°C
Laser wavelength 2940nm
Index of refraction 1.79 @2940nm
Emission cross section 3 x 10 -20 cm2

 

Er:YAG Specifications:

Dopant Concentration

Er: 20 at% and 50 at%

Wavefront Distortion

≤0.125λ/inch(@1064nm)

Extinction Ratio

≥25 dB

Rod Sizes

Diameter:3~6mm, Length:50~120 mm 
Upon request of customer

Dimensional Tolerances

Diameter:+0.000"/-0.002", 
Length: ± 0.02" 

Barrel Finish

Ground Finish: 400# Grit

Parallelism

≤10"

Perpendicularity

≤5′

Flatness

λ/10

Surface Quality

10/5(MIL-PRF-13830B)

Chamfer

0.006"±0.002" at 45°± 5°

AR Coating Reflectivity

≤ 0.25% (@2940nm)

Notes:
1. To inquire a finished crystal, please provide specifications as listed above. For most applications, we only need to know the following: (1)dopant concentration;  (2)sizes;  (3)surface quality;  (4) coating.
2. For special request, please provide detailed specification for evaluation and fabrication.

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