China Beauty Machine Hair Removal Optical Laser Part ND YAG Crystal Rod Lens X-P22L5M12001B
Nd:YAG (neodymium-doped yttrium aluminum garnet; Nd:Y3Al5O12) is a crystal that is used as a lasing medium for solid-state lasers. The dopant, triply ionized neodymium, Nd(III), typically replaces a small fraction (1%) of the yttrium ions in the host crystal structure of the yttrium aluminum garnet (YAG), since the two ions are of similar size.[1] It is the neodymium ion which provides the lasing activity in the crystal, in the same fashion as red chromium ion in ruby lasers. Material: Nd(Ce)YAG Cr:YAG Dimension: Dia. 3.00mm Thickness: 55.00mm Tolerance : +/-0.10mm VY Optoelectronics Co.,Ltd. can also produce YAG single crystal product, CTH: YAG, Er:YAG, Ho:YAG, Yb:YAG, Undoped YAG and so on, with the maximal diameter of 4-6 inches, as well large-size magneto-optical single crystal TGG and TSAG . We can provide the various special crystal rods, large-size and high-concentration laser crystal slab, crystal substrates, and other special products under the requirements of the customers. Neodymium doped Yttrium Aluminum Garnet (Nd:YAG) is the most commonly employed solid state lasing medium for material processing applications. Nd:YAG has relatively good optical absorption and conversion efficiency, low lasing threshold and good thermal dissipation for high power operation. Nd:YAG (neodymium-doped yttrium aluminum garnet; Nd:Y3Al5O12) is a crystal that is used as a lasing medium for solid-state lasers. The dopant, triply ionized neodymium, Nd(III), typically replaces a small fraction (1%) of the yttrium ions in the host crystal structure of the yttrium aluminum garnet (YAG), since the two ions are of similar size. It is the neodymium ion which provides the lasing activity in the crystal, in the same fashion as red chromium ion in ruby lasers. Capabilities of YAG crystal VY Optoelectronics Co.,Ltd can produce Rod size: 3- 30mm in diameter and 1 – 300mm in length Slabs: （3-50）mm Length *（3-8）mm Width *（30-200）mm Height Nd dopant concentration : 0.3% – 1.1% Polishing AR-coating or/and dichroic coating VY Optoelectronics Co.,Ltd. customized yag rod lens of laser-rod-cooling jacket and laser rod bonding in different materials. People also ask What are the benefits of YAG laser? YAG Laser technology, which utilizes highly concentrated beams of light to penetrate the skin and ablate (vaporize) problem areas, can address sun damage, wrinkles, and scars. This technique, known as skin resurfacing, removes the top layers of skin. What are the side effects of Nd:YAG laser treatment? Redness, swelling and itching immediately after the procedure that may last a few days after treatment. Rarely, skin pigment may absorb too much light energy and blistering can occur (this settles by itself) Changes in skin pigmentation. What does YAG mean in lasers? YAG stands for the medium in which laser light is created (Yttrium Aluminum Garnett). It is a non-invasive, quick, safe, outpatient procedure and can be performed on both eyes at the same sitting if required. What is a Nd:YAG laser used for? Nd:YAG lasers are used in ophthalmology to correct posterior capsular opacification, after cataract surgery, for peripheral iridotomy in patients with chronic and acute angle-closure glaucoma, where it has largely superseded surgical iridectomy, for the treatment of vitreous eye floaters, for pan-retina What are the side effects of the YAG? YAG laser capsulotomy is generally a very safe procedure. However, there are some risks and side-effects which includes an increase in floaters, raised intraocular pressure, inflammation, haloes/glare, lens damage, retinal tear/detachment. Your glasses prescription may also change after the laser treatment.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Diameter | 4mm |
| Length | 130mm |
| Coating | Both endssurfaces |
Key Features
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Nd:YAG Laser Crystals Yagcrystal
Nd Dopant Concentration: 0.5─1.2 atm % Orientation: ±5° Flatness [632.8nm]: <λ/10 @ 632.8 nm
Wavelength:1064 nm; chemical formula:Y3Al5O12:Nd; melting point:1970°C; density:4.5g/cm3; orientation:<111>±5°; flatness:<λ/10 @632.8 nm; parallelism:≤10"; perpendicularity:≤5′; surface finish:10/5. Nd:YAG is among the earliest and best-known laser crystals. Its basic properties support near-/far-infrared solid-state lasers and their frequency doubling and tripling, with broad research, medical, industrial, and military use.
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Nd:YVO4 Laser Crystals Yagcrystal
Dopant Concentration: 0.1─ 4.0 atm % Diameter r: 1.5─ 25.0 Length: 0.5─30.0
Density:4.22 g/cm2; melting point:1810 ±25℃; orientation:a-cut crystalline direction (+/-5℃); wavefront distortion:<λ/8 at 633nm; surface quality:better than20/10 Scratch/Dig; parallelism:<10 arc seconds; perpendicularity:<5 arc minutes; flatness:<λ/10 at 632.8nm; bevel:0.15x45o. Neodymium-doped yttrium vanadate (Nd:YVO4). Nd:YVO4 is an excellent crystal for diode-pumped lasers, especially low-to-medium power. Compared with Nd:YAG, Nd:YVO4 offers higher pump absorption and a larger stimulated-emission cross-section. Diode-pumped Nd:YVO4 combined with LBO, BBO, or KTP provides efficient frequency doubling for NIR, green, blue, and UV all-solid-state sources. Nd:YVO4 lasers serve machinery, materials processing, spectroscopy, wafer inspection, displays, medical testing, laser printing, and storage. Nd:YVO4 diode-pumped systems are replacing water-cooled ion and lamp-pumped lasers, especially for compactness and single-longitudinal-mode output. Basic properties Crystal Structure | Tetragonal Lattice ConstantsÅ | a = b = 7.12, c= 6.29 Density g/cm3 | 4.22 Mohs Hardness | 8 - 9 Melting Point , °C | 2105 Refractive Index | at 1064 nm | no=1.9573; ne=2.1652 at 808 nm | no=1.9721; ne=2.1858 at 532 nm | no=2.0210; ne=2.2560 Thermal Expansion Coefficient | αc= 11.37 x 10-6x °K-1 Thermal Shock Resistance @25°C, W / m-1x °K-1, c-axis | 5.10 Emission Wavelength nm | 914, 1064, 1342 Nd:YVO4 vs Nd:YAG Laser Properties Comparison Laser Crystal | Dopant Concentration(atm%) | s (x10-19cm2) | a (cm-1) Nd:YVO4(a-cut) | 1.0 | 25 | 31.2 Nd:YVO4(a-cut) | 2.0 | 25 | 72.4 Nd:YVO4(c-cut) | 1.1 | 7 | 9.2 Nd:YAG | 0.85 | 6 | 7.1
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Tm：YAP Laser Crystals Yagcrystal
Doping concentration: Tm:1.0 ~ 4.0 at%. Wavefront distortion: ≤0.125λ/25mm@632.8nm. Crystal rod dimensions: available to customer requirements. Dimensional tolerance: diameter:+0.00/-0.05mm, length:± 0.5mm. Barrel processing: fine grinding or polishing. End-face parallelism:≤10". End-face perpendicularity to rod axis:≤5′. End-face flatness:≤λ/8@632.8nm. Surface finish:gradeⅠ. Edge bevel:0.2±0.05mm. Tm:YAP is an important diode-pumped crystal for2μm laser emission. Although its physical and chemical properties resemble Tm:YAG, its795nm pump absorption band better matches commonly used high-power AlGaAs diodes, and its pump absorption bandwidth is4nm wider than Tm:YAG, giving higher efficiency and direct linearly polarized output. Tm:YAP has important medical-laser and military applications. Crystal structure: orthorhombic. Lattice constants:a = 0.5138 nm, b = 0.5274 nm/c = 0.7308 nm (space group Pbnm). Melting point:1870 °C. Density:5.35 g/cm³. Mohs hardness:8.5. Specific heat:400 J/(kg ·K). Thermal conductivity:11W/(m·K). Refractive indices:n_ₐ=1.91, n__b=1.92, n__c=1.94.
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Ce: YAG Crystals Laser Crystals Dientech
Chemical formula: Y₃₋₃ₓCe₃ₓAl₅O₁₂ The crystal structure: Cubic crystal system Lattice parameters: 12.01 Å
Ce:YAG crystal is an important kind of scintillation crystals. Compared with other inorganic scintillators, Ce:YAG crystal holds a high luminous efficiency and a wide light pulse. Especially, its emission peak is 550nm, which well matched with the sensitivity detect wavelength of the silicon photodiode detection. Thus, it is very suitable for the scintillators of the equipments that taken the photodiode as detectors and the scintillators to detect the light charged particles. At this time, a high coupling efficiency can be achieved. Furthermore, Ce:YAG can also be commonly used as a phosphor in cathode ray tubes and white light-emitting diodes. Density: 4.57 g/cm3 Hardness by Mohs: 8.5 Index of refraction: 1.82 Melting point: 1970°C Thermal expansion: 0.8-0.9 x 10-5/K Crystal structure: cubic Advantage of Nd YAG Rod: Higher coupling efficiency with the silicon photodiode detection No afterglow Short decay time Stable physical and chemical property
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