3*65mm Nd-YAG Laser Crystal / Picosecond Rod Energy Bar Powder

$327.89 USD

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3*65mm Nd-YAG Laser Crystal / Picosecond Rod Energy Bar Powder

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：

Diameter of crystal rod	Optical homogeneity	Standard level	Optimum Level
Ф3~Ф5mm	Wavefront distortion	≤0.25λ/25mm	≤0.063λ//25mm
Ф3~Ф5mm	extinction ratio	≥25dB	≥28dB

Ф6~Ф8mm	Wavefront distortion	≤0.35λ/25mm	≤0.1λ//25mm
Ф6~Ф8mm	extinction ratio	≥22dB	≥25dB
Ф9~Ф12mm	Wavefront distortion	≤0.5λ/25mm	≤0.125λ//25mm
Ф9~Ф12mm	extinction ratio	≥20dB	≥23dB
Ф13~Ф15mm	Wavefront distortion	≤0.6λ/25mm	≤0.25λ//25mm
Ф13~Ф15mm	extinction ratio	≥18dB	≥20dB

Optical and spectral properties

Laser Transition	4F3/2 → 4I11/2
Laser Wavelength	1064nm
Photon energy	1.86×10-19J@1064nm
Emission linewidth	4.5Å @1064nm
Launch cross section	2.7~8.8×10-19cm2@1at% Nd
fluorescence lifetime	230μs@1at% Nd
Diode Pumped Absorption Wavelength	808nm
Pump Absorption Bandwidth	1nm
Main Pumping Zone Range	400~850nm
Refractive index	1.8197@1064nm

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℃
Thermal conductivity	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

If you need customization, please contact customer serviceRemind: Depending on the shipping batch, the packaging will be different, please understand.