ADG Hot Sale Hair Removal Accessory High Quality Nd Yag Laser Rod 1064nm Q-switch ND Yag Laser Equipment Crystal Rod

Nd: YAG crystal is currently the best solid

state laser material with high gain, low threshold, high efficiency, low loss, good thermal conductivity and thermal shock resistance. It is suitable for a variety of laser operation modes (continuous, pulse, Q-switch, mode locking, frequency doubling, etc.), and is widely used in industry, medical and scientific research fields

Technical Indicators

Doping concentration:Nd: 0.2～1.3at%

Crystalline orientation:[111]or[100]，deviation5°within

Wavefront distortion:See the table below for details.

extinction ratio:See the table below for details.

Crystal rod size:diameter:2～15 mm, length:3～200 mm
Other on request

Dimensional tolerance:diameter:+0.00/-0.05mm, length:±0.5mm

Cylindrical Processing:400#Abrasive finishing or polishing

End-face parallelism:≤ 10″

Verticality between end face and rod axis:≤ 5′

End flatness:λ/10 @632.8nm

surface quality:10-5 (MIL-O-13830A)

Inverted side:0.15±0.05mm

Reflectivity of antireflective film:≤ 0.25% @1064nm

Laser Damage Threshold of Coatings:≥500MW/cm2

Extinction ratio and wavefront distortion of crystal rods are shown in the table below.：

Physical and chemical properties

crystal structure:Cubic system

lattice constant:12.01 Å

melting point:1970℃

Mohs hardness:8.5

density:4.56±0.04g/cm3

specific heat:0.59J/g.cm3@0-20℃

Modulus of elasticity:310GPa

Young’s modulus:3.17×104Kg/mm2

Poisson ratio:0.3

Tensile strength:0.13~0.26GPa

thermal expansion coefficient:[100] direction:8.2×10-6/℃@ 0~250℃

[110]direction:7.7×10-6/℃@0~250℃

[111]direction:7.8×10-6/℃@0~250℃

Thermal conductivity:14W/m/K@20℃

10.5W/m/K@100℃

Thermo-optical coefficient(dn/dT):7.3×10-6/℃

Thermal shock resistance:790W/m

solubility:Insoluble in water，Slightly soluble in ordinary