Cr4+：YAG

YAG is an excellent crystal for passive Q-switch. It can be used in diode pumped

Classification:

Laser crystals

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Detailed introduction

Cr⁴⁺:YAG is an excellent crystal for passive Q-switch. It can be used in diode pumped or lamp-pumped Nd:YAG, Nd:YLF, Yb:YAG or other Nd and Yb doped lasers at wavelength from 1.0um to 1.2um.

PRODUCT FEATURE

Long lifetime

Good thermal conductivity

High damage threshold

More stable and reliable

Specifications
Orientation	<100> or <111>±5°
Dimension	Diameter:3~12mm,H×W:2×2~30×30mm(Customized available)
Dimension Tolerance	Φ:+0/-0.04mm,L:+0.02/-0mm
Perpendicularity	≤5′
Parallelism	≤10″
Chamfer	≤0.15±0.05mm
Surface Quality	10/5 (MIL-PRF-13830B)
Barrel	Fine Ground
Flatness	≤λ/10@632.8nm
Coating	AR coating:R<0.15%@1064nm
Damage Threshold	≥1GW/cm2@1064nm,10ns,10Hz

Properties
Crystal Structure	Cubic
Melting Point	1970°
Density	4.56±0.04g/cm³
Specific Heat	0.59J/g.cm³@0~20℃
Elastic Modulus	310GPa
Young's Modulus	3.17×104Kg/mm²
Mohs Hardness	8.5
Tensile Strength	0.13~0.26GPa
Poisson’s Ratio	0.3
Thermal Expansion Coefficients	<100>方向:8.2×10-6/K@0~250℃
	<110>方向:7.7×10-6/K@0~250℃
	<111>方向:7.8×10-6/K@0~250℃
Thermal Conductivity	14W/m/K@20℃
	10.5W/m/K@100℃
Thermal Optical Coefficient	dn/dT=7.3×10-6/K
Refractive Index	1.82@1064nm
Solubility	Insoluble in water, slightly soluble in ordinary acid