ENGINEERED CRYSTALS / XINKEHUI
One crystal platform.
Many possibilities.
Yttrium aluminum garnet for optical engineering, solid-state lasers and distinctive colored materials. Start with the application. Build the right specification.
01 / APPLICATIONS
A YAG single crystal is a host material, not a universal finished component. Dopant chemistry, optical quality and geometry determine its role in your system.
Nd:YAG is a widely used gain medium for industrial marking, welding, precision processing and scientific laser systems. Its characteristic 1064 nm emission supports frequency conversion when paired with suitable nonlinear optics.
Pump source, dopant concentration, rod or slab geometry, cooling arrangement and coating wavelengths. A colored YAG boule is not evidence of laser-grade performance.
Discuss laser-grade YAGUndoped YAG offers a cubic, nominally non-birefringent host for optical windows, substrates and experimental optical components. Its hardness is useful where handling durability matters.
Working wavelength, thickness, transmitted wavefront, clear aperture, surface finish and absorption. Verify transmission on the actual YAG part, not only a handbook curve.
Discuss optical YAGColored YAG rough and blanks give cutters and designers a synthetic garnet material with a range of visual appearances. The local gallery shows yellow, purple and green material examples.
Color reference, usable dimensions, inclusions, cracks and cutting yield. YAG is a synthetic garnet, not natural gemstone or diamond; color does not establish dopant identity.
Explore colored YAGCr4+:YAG can act as a passive Q-switch in suitable near-infrared lasers. Yb:YAG and Er:YAG address different gain-medium requirements. These YAG variants need separate optical and dopant specifications.
For Cr:YAG, define initial transmission and wavelength. For a gain crystal, define absorption, emission and pumping conditions. Ask us to confirm the exact grade before ordering.
Review a doped YAG requirementLaser machining and medical laser equipment are downstream uses of suitable doped YAG. This page offers crystal materials, not a certified medical device or a guaranteed laser output.
02 / MATERIAL OPTIONS
Actual Xinkehui YAG material photographs. Appearance and size vary by batch; the images are examples, not an inventory promise.
For color selection and cutting evaluation. Request usable dimensions and a current batch photograph.
Review internal clarity and color under agreed lighting before committing to a cutting plan.
Blank and rough-material inquiries welcome. Optical or laser use requires independent grade confirmation.
SPECIFY THE GRADE, NOT JUST THE COLOR
Undoped YAG serves as a passive optical host. Nd:YAG, Yb:YAG and Er:YAG contain active ions for specific laser applications. Ce:YAG is used for luminescence and wavelength conversion. Colored YAG can instead be selected for decorative cutting.
These categories are not interchangeable. Send the chemical composition, dopant concentration and acceptance tests required for your YAG project. Availability of each grade is confirmed by quotation.
YAG material sample / original product footage
03 / TECHNICAL ADVANTAGES
YAG's value comes from its combination of mechanical, optical and thermal properties, with final performance defined by the finished part.
YAG is optically isotropic in an unstressed state. This simplifies polarization management compared with intrinsically birefringent crystals. Mounting stress can still introduce birefringence.
Typical Mohs hardness of 8–8.5 supports scratch resistance. YAG remains brittle: protect edges, avoid point loads and use appropriate packaging and handling.
The YAG lattice accommodates selected active ions. Choose the dopant to match the pump and target emission; do not assume all YAG crystals operate at 1064 nm.
Room-temperature YAG thermal conductivity is around 13–14 W/m·K in the undoped-host catalogue reference. Doping and temperature change this value; cooling and mounting must be engineered together.
04 / MATERIAL DATA
Typical YAG host reference values below are for material selection, not guaranteed Xinkehui batch specifications. Doped YAG and finished components require a separately agreed specification.
| Property | Reference value | Engineering context |
|---|---|---|
| Chemical formula | Y3Al5O12 | Yttrium aluminum garnet; synthetic single crystal |
| Crystal system | Cubic, garnet structure | Nominally isotropic; stress may affect optical behavior |
| Density | Approximately 4.56 g/cm³ | Undoped host reference at room temperature |
| Mohs hardness | Approximately 8–8.5 | Hard but brittle; not an impact-resistance rating |
| Crystal orientation | <100> or <111> by specification | Confirm orientation and angular tolerance for the intended part |
| Indicative transmission region | Approximately 0.25–5 µm | Host reference only; absorption, thickness and coating matter |
| Thermal conductivity | Approximately 13–14 W/m·K | Undoped YAG room-temperature catalogue reference; doping and temperature dependent |
| Nd:YAG thermal expansion | 7.8 × 10−6 K−1 | Nd:YAG reference, <111>, 0–250 °C; not a universal undoped-host guarantee |
| Melting point | Approximately 1,970 °C | Not a maximum operating-temperature specification |
| Typical Nd:YAG emission | 1,064 nm | Specific to suitable Nd-doped material, not undoped YAG |
Host values are approximate selection references. Consult the linked material literature and request batch-specific measurements before a final design decision.
Xinkehui undoped YAG referenceXinkehui Nd:YAG referenceXinkehui YAG product catalogueGeneral company capability does not establish that every listed optical tolerance is achievable on every YAG grade.
05 / PROCUREMENT
A complete YAG inquiry reduces revisions and helps us assess suitability, processing and realistic supply options.
Tell us whether your YAG is for optics, a laser, research or colored-material cutting. Include operating conditions.
Send your YAG drawing, grade, dopant, dimensions, tolerances, quantity and preferred delivery date.
Request the relevant inspection scope: dimensional checks, visual defects, transmission or wavefront, as applicable.
Review the YAG specification, price, availability, packaging and lead time before placing an order.
06 / ABOUT XINKEHUI
shanghai xinkehui new materails co.,ltd specializes in the research, production, processing and sales of semiconductor substrates and optical crystal materials.
Our portfolio includes silicon wafers, silicon carbide wafers, sapphire substrates, CVD synthetic diamond, YAG single crystal, ZnSe windows and sapphire watch cases. For this specialist page, our focus is your YAG material requirement.
Visit the Xinkehui website ↗Align the crystal grade and geometry with your application.
Our public company profile describes cutting, grinding, polishing, coating and inspection capabilities. YAG feasibility is reviewed per project.
Agree measurable acceptance criteria and the documentation needed for your order.
07 / QUESTIONS & ANSWERS
Practical answers for material selection and purchasing.
Ask a technical question ↗YAG is yttrium aluminum garnet, Y3Al5O12. A YAG single crystal has a continuous crystal lattice rather than the grain boundaries of a polycrystalline ceramic. It can be undoped or contain selected dopants for optical, laser or color-related functions.
No. Undoped YAG is a passive host material. Laser gain requires suitable active ions, such as Nd, Yb or Er, plus the correct pumping and resonator design. Specify the dopant rather than ordering only “YAG crystal.”
Match the YAG dopant to your pump wavelength, target output, thermal load and laser architecture. Nd:YAG commonly supports 1064 nm operation; Yb:YAG is associated with output around 1030 nm. They are not drop-in replacements.
No. Lighting, composition, oxidation state and defects influence appearance. A photograph cannot certify the active-ion species or concentration. Request a material description and agreed optical tests for your YAG grade.
Colored YAG rough can be evaluated for decorative cutting. Check cracks, inclusions, usable volume and color before planning yield. Describe it accurately as synthetic YAG garnet, not natural garnet or diamond.
Provide application, material grade, dopant and concentration if needed, dimensions or drawing, optical finish, coating, quantity and delivery destination. For colored YAG, add a color reference and clarity requirements.
No. The table gives typical host reference values. Temperature, doping, wavelength and processing can change performance. The accepted YAG purchase specification and agreed measurements define your supplied part.
Yes, you can submit a drawing for feasibility review. Dimensions, finish, coating and inspection are agreed individually. Company-wide processing capabilities are not automatic guarantees for every YAG geometry.
An antireflection coating must match the working wavelength, angle and polarization. A coating for one laser wavelength may not serve another. Include reflectance and laser-damage test conditions where relevant to your YAG component.
Use clean gloves and protect polished faces and edges. Avoid impact, point loading and sudden temperature changes. Follow coating-specific cleaning advice; do not assume a cleaning solvent is safe for every YAG part.
Grade, usable volume, dopant, optical quality, processing yield, coating and inspection all influence price. This page does not publish a verified price range. Request a configuration-specific YAG quotation.
Gallery images do not establish current inventory. Ask our team to confirm the YAG grade, quantity and batch availability. Minimum order and lead time are included in the quotation when confirmed.
08 / LET'S TALK MATERIALS
Share your application and the specification you need. We will review the material requirement with you.
Room 1805, Building 1, Wanda Mall