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Nd YAG Crystal

Nd YAG Crystal

Neodymium doped Yttrium Aluminum Garnet (Nd:Y3Al5O12orNd:YAG)crystal,which continues as the best of the rare earth garnet materials that are characterized by four-level laser operation which permits low threshold pulse and CW operation.

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Product Details

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•  Wide absorption bandwidth

•  Low lasing threshold

•  High slope efficiency

•  Large luminescence cross-section

•  Linearly polarized emission and single-mode output


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Nd YAG lasers are widely used in different medical fields such as dermatology laser 

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 • Used in ophthalmology to correct posterior capsular opacification


 • Used extensively in the field of cosmetic medicine for laser hair removal


 • Can be used to remove skin cancers


 • In certain cases these lasers are also used to treat eye floaters.


Other applications

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Laser marking machine


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Metal cutting machine


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Pulsed Solid-state laser

》More information about Nd YAG: Wikipedia


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Low bulk absorption

High Purity raw materials >99.999%

Low bulk absorption

Advanced raw material pre-sintering process

Advanced raw material pre-sintering process

No poly-crystalline defects


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① Full automatic controlled crystal growth furnace High yield

② Advanced CZ Method Crystalline Process Stable quality control

③ Systematic batch packing classification

》More information about Equipments


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Maximum boule size >dia50mm

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Nd3+concentration increased by post-annealing process,high absorption coefficient

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High doping concentration gradient homogeneity , typical value<0.02cm-1/inch

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No bubbles, scatering point and inclusions in crystals


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No grain boundary in crystals



》More information about Crystal Growth


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High level dust-free clean room 

(1000) grade)


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2-sides polishing equipments


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AFM


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Interferometer

Advance CMP process, Ra<0.4nm          

Surface quality: >10/5           

Flatness: <λ/8@632 nm


》More information about Polishing


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ZPCL1H3%D0QF71F_F5AW5GM.png       Customized coating service 

      S1/S2:

      AR/AR@940+1030nm;
              HR@1030nm+HT@940+AR1030nm;

》More information about Coating


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Properties

Nd:YAG

Crystal Structure  

cubic - la3d

Lattice Constants

12.01Ä

Density  

4.56 g/cm3

Melting Point  

1950°C

Refractive Index  

n= 1.8197 @1.064 µm  

Thermal Conductivity /(W·cm-1·K-1@25°C)

0.14 W

Specific Heat/ (J·g-1·K-1)

0.59

Thermal Expansion /(10-6/°C@25°C ) 

6.9

Hardness (Mohs)  

8.5

Young`s Modulus /GPa

317  

Shear Modulus / GPa

54.66  

Extinction Ratio

25dB

Poisson Ratio

0.25


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Nd Concentration tolerance (atm%)                            

0.3-1.5%                                                                       

Orientation

[001] or [110] or [111] < ±0.5°

Parallel

10〞

Perpendicular

surface Quality

10/5

Wavefront Distortion

λ/4@632nm

Surface Flatness

λ/8@632nm

Clear Aperture

>95%

Chamfer

<0.2×45°

Thickness/Diameter Tolerance

±0.05 mm

Maximum dimensions

dia (3~12.7)×(3~150)mm

Coatings

AR/AR@940+1030;

HR@1030+HT@940+AR1030;

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Pump transition wavelength, λp (nm)  

808

Laser transition wavelength, λl (nm)

1064

Pump transition bandwidth,Δλp (nm)

<4

Laser transition bandwidth, Δλl (nm)

~0.6

Pump transition peak cross section,σp (E-20 cm2)

6.7

Laser transition peak cross section, σl (E-20 cm2)

28

Pump transition saturation intensity,φp (kW/cm2)

12

Laser transition saturation intensity, φl (kW/cm2)

2.6

Laser transition saturation fluence, Γl,sat (J/cm2)

0.6

Minimum pump intensity, Imin (kW/cm2)

~0

Upper laser manifold lifetime,τ(msec)

0.26

Quantum defect fraction

0.24

Fractional heat generation

0.37

send inquiry.png If you want to get more information send us your message


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Absorption Spectrum of 1%Nd:YAG crystal


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History: 

Metalaser has engaged in crystal industry over 20 years which is one section    of Shanghai Daheng Optics and Fine Mechanics Co., Ltd held by SIOM. 

Team:     

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More than 60% of our employees are physics or material scientists from NIALT and SIOM.





》More information about our company

Alibaba Transaction History:

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We have set up a mall on the Alibaba, and there are many transaction record from all over the world.    

》Our Alibaba trade website

           

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Delivery in 3~4weeks

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Free samples can be provided

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Free ex change goods or sales return for once 

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Provides re-polished and coating

services (Coating damage only)

》More information about Service


With Laser Crystals for sale, it is one of the leading manufacturers and supplies of good nd yag crystal, welcome to buy and wholesale products at good price from our factory.
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