Er Cr:YAG Laser Crystal Product Description
The Er,Cr:YAG laser crystal serves as the core gain medium for generating laser radiation in the 2.94 μm wavelength range. Co-doping with chromium ions (Cr³⁺) acts as a sensitizer, enhancing broad-spectrum absorption of flashlamp output and enabling efficient, high-energy pulsed operation under lamp pumping. Due to the high absorption coefficient of water molecules at the 2940 nm wavelength, Er,Cr:YAG crystals are commonly used in applications such as skin rejuvenation, scar revision, laser ranging, and scientific research.
Er Cr:YAG Laser Crystal Key Features
- Cr³⁺ absorbs light in the visible and near-infrared ranges and efficiently transfers energy to the Er³⁺ activator ions; this significantly improves lamp-pumped energy utilization compared to standard Er:YAG systems and lowers the pumping threshold.
- The 2940 nm wavelength coincides with a strong absorption peak of water, enabling shallow penetration and precise tissue vaporization.
- Compared to standard Er:YAG, chromium co-doping reduces the energy and heat dissipation demands placed on the pump lamp.
- It possesses an exceptionally high laser damage threshold, allowing it to withstand high-energy pulse impacts.
Why Choosing Us For Erbium Cr:YAG Laser Crystal
- We offer flexible customization of crystal dimensions and shapes to accommodate various cavity designs.
- We can customize anti-reflective coatings and high laser-damage-threshold coatings based on specific customer requirements.
- Every Erbium Cr:YAG laser crystal undergoes rigorous quality and process control, and is manufactured in strict accordance with customer specifications and drawings.
Capability Of Customizing Er Cr:YAG laser crystal
2940nm Dental And Fractional Laser Crystal Applications
Medical Aesthetic Lasers
The 2940 nm laser generated by Er:Cr:YAG systems targets the peak water absorption wavelength, enabling a penetration depth of approximately 1 µm and facilitating ablative vaporization. Chromium ions co-doped within the crystal transfer visible light energy to erbium ions, effectively doubling the energy utilization efficiency of the lamp-pumped system. When applied to skin rejuvenation, wrinkle reduction, and scar repair, the thermal effect is confined to the superficial skin layers, stimulating collagen regeneration.
Dental Lasers
Dental enamel and dentin contain both water and hydroxyapatite; the 2940 nm laser is strongly absorbed by both components, enabling the ablation of hard tissue. Furthermore, the Er:Cr:YAG laser exhibits minimal thermal diffusion during the ablation process, allowing practitioners to treat carious lesions using a non-contact approach.
Medical Surgical Lasers
Precision procedures in fields such as ENT, ophthalmology, and dermatological surgery demand accurate cutting and effective hemostasis. The 2940 nm laser is highly absorbed by the water content in soft tissues, enabling cellular vaporization and separation while simultaneously coagulating capillaries, thereby minimizing damage to functional tissues.
