Nd:YAG, i.e., Neodymium‑doped Yttrium Aluminum Garnet, is one of the most widely used solid‑state laser gain media today, thanks to its excellent compatibility with a variety of laser operating modes including continuous wave (CW), pulsed, Q‑switched, mode‑locked, and frequency‑doubled operation.
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Physical Property
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Value
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Remarks
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Crystal Structure
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Cubic crystal system
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Lattice Parameters
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a = b = c ≈ 12.008 Å, α = β = γ= 90°
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Density
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4.5 g/cm³
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Room temperature
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Refractive Index (1064 nm)
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n ≈ 1.823
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Room temperature
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Mohs Hardness
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8.5
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Thermal Conductivity
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14.0 W/(m·K)
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Room temperature
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Melting Point
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1970 °C
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Thermal Expansion Coefficient
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7.8×10⁻⁶ K⁻¹
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0–250 °C
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Absorption Bandwidth (Pump Wavelength)
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808 nm band: ~18 nm (FWHM); 885 nm band: ~25 nm (FWHM)
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Item
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Specification
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Doping Concentration
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0.3–1.0 (±0.1) at.%
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Maximum Length
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Diameter: 1–40 mm, Length: 0.3–200 mm, custom sizes available per customer request
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Dimensional Tolerance
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Diameter tolerance: ±0.05 mm, custom available; Length tolerance: ±0.1 mm, custom available
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Surface Finish
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10/5 (per MIL-PRF-13830B standard)
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Flatness
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≤λ/8 @ 633 nm
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Transmitted Wavefront Distortion
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≤λ/8 @ 633 nm
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Parallelism
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20 arcsec
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Perpendicularity
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≤15 arcmin
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Chamfer
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≤0.2 mm × 45°
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Edge Chipping
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≤0.1 mm
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Coating
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Custom coating design service available
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Quality Guarantee Period
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1 year (under normal use)
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