The Erbium-doped yttrium-aluminium-garnet (Er:YAG) crystal combines the optical properties of YAG with the specific incorporation of Erbium ions. Er:YAG crystals are known to emit laser light at wavelengths that water absorbs strongly. This property makes them indispensable for medical and dental applications, such as the removal of tissue and various dental procedures. Additionally, Er:YAG lasers are employed in telecommunications, spectroscopy and materials processing, given that they offer controlled wavelength emission in the mid-infrared range.
Notes:
1. When requesting or ordering a finished crystal, please specify the above-listed specifications. For most applications only the following details are required:
1) Nd dopant concentration; 2) Dimensions; 3) Surface quality; 4) Coating.
2. For special requirements, please provide a detailed specification for evaluation and manufacturing.
Er:YAG Applications
1. Dermatology and Aesthetics:
- Skin Resurfacing: Er:YAG lasers are used for fractional skin resurfacing to treat wrinkles, scars and pigment irregularities.
- Tattoo Removal: They are employed to break down ink particles effectively.
2. Dentistry:
- Tooth Drilling: Er:YAG lasers are applied for cavity preparation, enamel removal and soft tissue procedures, thereby ensuring minimally invasive treatment.
- Periodontal Treatment: They can be used for the management of gum disease, sterilisation of periodontal pockets and gingivectomy.
3. Medical Applications:
- Ophthalmology: Er:YAG lasers are utilised for procedures such as cataract surgery and LASIK (Laser-Assisted in Situ Keratomileusis).
- Lithotripsy: They are employed for the non-invasive disintegration of urinary and gallbladder stones.
4. Materials Processing:
- Precision Cutting and Drilling: Er:YAG lasers can cut and drill various materials, including metals and ceramics, with high accuracy.
- Microfabrication: They are employed for microstructuring and micro machining processes.
5. Telecommunications:
- Fibre Amplifiers: Er:YAG crystals are used as the amplification medium in fibre amplifiers to boost signals in the 1.5‑micrometre wavelength region, which is important for long-distance telecommunication.
6. Spectroscopy:
- Infrared Spectroscopy: Er:YAG lasers are employed in research and analytical instruments for spectroscopic applications, for example, the analysis of chemical compounds and trace gas detection.
7. Research and Development:
- Scientific Research: Er:YAG lasers are used in various research applications, including laser physics, materials science and quantum optics.
8. Defence and Security:
- Target Illumination: They are used for target illumination and range finding in military and defence applications.
- Countermeasures: Er:YAG lasers may be used for countermeasures to disrupt or blind sensors and targeting systems.