Active Member
|
[China]
Address: No.200, Zgaoxian Road, Jiading Zone, Shanghai, China
Contact name:sales
Nanjing Crylink Photonics Co.,Ltd |
|
|
Er YAG laser Crystal—50% Erbium doped in YAG which can stimulate 2940nm laser used in medical and dentistry
Er YAG, Erbium doped Yttrium Aluminum Garnet (Er:Y3Al5O12 or Er:YAG) combine various output wavelength with the superior thermal and optical properties of Er YAG. It is an excellent laser crystal which lasers at 2.94μm. This wavelength is the most readily absorbed into water and hydroxylapatite of all existing wavelengths and is considered a highly surface cutting laser. It is a well known material for medical applications.
The emission wavelength of Er YAG with doping concentration of 50% is 2940nm, which is at the position of water absorption peak and can be strongly absorbed by water molecules. Therefore, it is widely used in the field of plastic surgery and dentistry. At present, the projects we have participated in include laser blood collection instrument, which adopts the structure of both sides of Er:yag rods coated and xenon lamp end pumped.the Er YAG laser wavelength is an excellent choice for improvement of a variety of skin conditions and features of aging, including dyschromia, actinic photodamage, solar elastosis, acne and traumatic scarring, fine lines and mild to moderate rhytidosis, coarse skin texture, and skin laxity.
Applications & General Information Of Er Yag Laser Crystal
Choosing the right laser product for either medical application or
optical communication is very important. We offer Er Yag Crystal
with many striking features to suit all needs. It is an impressive
laser material suitable for eye-safe emissions. The specialized
feature of this product is that it helps people to achieve highly
efficient laser operation. It is well-known for its superior
quality and outstanding features. It includes the finest optical
quality, minimal scattering loss, high damage, and output
threshold.
Major Applications
With this laser product, people can enjoy an increased level of
energy level structure. With better doping concentration, it is
used in two applications. It includes:
This product has made of proprietary technology that lets it overcome the worst efficiency associated with other laser materials. We offer the laser crystals in different sizes, so you can pick the right one carefully. We ensure that every product can meet the precise specifications and deliver better performance.
Material and Specifications
| Orientation | [100] or [100] <± 0.5. |
| Parallelism | 10〞 |
| Perpendicularity | 5ˊ |
| Surface Quality | 10-5 |
| Wavefront Distortion | <λ/8@632 nm |
| Surface Flatness | <λ/10@632.8nm |
| Clear Aperture | >90% |
| Chamfer | 0.1mm@45° |
| Thickness/Diameter Tolerance | ±0.05 mm |
| Maximum Dimensions | Diameter:2mm-50mm, Length:5mm-180mm |
| Coatings | < 0.25% @ 2940 nm |
Physical and Chemical Properties
| Crystal Structure | cubic – la3d |
| Lattice Constants | 12.01Å |
| Density | 4.56-5.11 g/cm3 |
| Melting Point | 1950°C |
| Thermal Conductivity/(W·m-1·K-1@25°C) | 0.14W |
| Specific Heat/(J·g-1·K-1) | 0.59 |
| Thermal Shock Resistance | 790W/m |
| Thermal Expansion /(10-6·K-1@25°C ) | 7.8 |
| Hardness (Mohs) | 8.5 |
| Young`s Modulus /GPa | 317 |
| Shear Modulus /Gpa | 54.66 |
| Extinction Ratio/dB | 30 |
| Barrel Finish | Ground Finish 400#Grit |
| Poisson Ratio | 0.25 |
| Laser Transition | 4I11/2 → 4I13/2 (highly doped); 4I13/2 → 4I15/2 (low doped) |
| Laser Wavelength | 2940 nm (highly doped); 1645 nm (low doped) |
| Photon Energy | 6.75×10-20J@2940nm |
| Pump Absorption Band Width | 600~800 nm (highly doped); 1530 nm (low doped) |
| Damage Threshold | >500MW/cm2 |
| Emission Cross Section | 3×10-20 cm2 |
| Fluorescence Lifetime | 0.23 ms (highly doped); 2~5 ms (low doped) |
| Refractive Index | 1.7838@2940 nm |
Absorption and Emission Spectrum
Feature
