best price Yttrium aluminium garnet used in laser Surgery

Product Overview

Description

Yttrium aluminium garnet

Neodymium doped Yttrium Aluminum Garnet (Nd:Y₃Al₅O₁₂ or Nd: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. It is the most mature and widely used solid-state laser material adopted by R&D, medical, industrial and military customers. Its main and obvious advantages are: high gain, low threshold, high efficiency, low loss at 1.064 µm, as well as high optical quality, good thermal conductivity and thermal shock characteristics, stable chemical and mechanical properties, which make Nd:YAG as the most suitable and commercial laser material for various modes of operation (CW, pulsed, Q-switched, mode locked and cavity dumped).

Yttrium aluminium garnet

Ø Wide absorption bandwidth

Ø Low lasing threshold

Ø High slope efficiency

Ø Large luminescence cross-section

Ø Linearly polarized emission and single-mode output

Materials	Nd:YAG
Nd Concentration tolerance (atm%)	0.3-1.5%
Orientation	[001] or [110] or [111]  < ±0.5°
Parallel	10''
Perpendicular	5'
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;

Physical and Chemical characteristics 

Properties	Yb: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

 

 

Optical characteristics Yttrium aluminium garnet

Properties	Nd:YAG
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

Absorption Spectrum of 1%Nd:YAG crystal

 

 

 

Q1: Can I have samples to test?

A: Yes,we are pleased to supply samples to test and check quality,mixed sample order is available.

Q2: Do you have any MOQ limited? A: Our MOQ: 1pcs Q3: What’s the lead time?

A: Sample :2-3 days.Mass production: 15-20 days.

Q4:How do you ship the goods and how long does it take?

A: We usually ship goods by UPS,FEDEX,TNT. It usually takes 3-5 days to arrive.

Q5: Do you offer guarantee for your products?

A: After test them if not pass test,you can return the goods at any time, we will re-offer you again and also bear shipping fee.

Q6: Do you accept OEM?

A: We have our own brand-metalaser. OEM is also acceptable.