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Nd:Ce:YAG Laser Crystals

Nd:Ce: YAG Laser Crystals

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Description

Nd:Ce:YAG Laser Crystals
Nd:Ce: YAG crystal is an excellent laser material used for no-water cooling and miniature laser systems. The (Nd, Ce): YAG laser rod we produce has the characteristics of high efficiency, low threshold, anti-violet radiation, and high repetition frequency for lasers operation. Nd:Ce: YAG laser crystal is the most ideal laser material for the high repetition air cooling lasers. It is suitable for different modes of operation (CW, pulsed, Q-switched, mode-locked, doubling of frequency ) and high-average power lasers.

Advantages:
1. Low threshold
2. Very high slope efficiency
3. Good thermal stability
4. High optical quality
5. Good anti-UV irradiation property

Application: Laser Rangefinder
Format: Rods, Discs, and Slabs
Rod sizes: Diameter: 2- 10mm, Length: 30 - 150mm
Disc sizes: Diameter: 2 - 15mm, Thickness: >= 1mm
Slab sizes: Length: 60 - 150mm, Width: 6 - 15mm, Thickness: 3 - 4mm
Ends: Plane, Brewster, Concave, and Convex
Sides: Ground, Polished and Grooved

Specifications:

Dopant Concentration	Nd: 0.9-1.3 atm %, Ce : Nd=1:10	Orientation	<111> crystalline direction within 5℃
Flatness	<λ/10	Parallelism	≤10 arc seconds
Perpendicularity	≤5 arc minutes	Surface Quality	10/5 S/D MIL-O-13830A
Optical Quality	Interference fringes ≤ 0. 25 λ /inch Extinction ration ≥ 30dB	Size	Diameter: 3~8mm, Length: 40~80mm Upon request of the customer
Dimensional Tolerances	Diameter: +0.000"/-0.05" Length: ±0.5"	AR-Coating Reflectivity	≤ 0.2% (@1064nm)

Physical and Chemical Properties:

Chemical Formula	Nd³⁺: Ce³⁺: Y3Al5O12	Crystals Structure	Cubic
Lattice Parameters	12.01Å	Melting Point	1970℃
Moh Hardness	8.5	Density	4.56 ± 0.04g/cm³
Specific Heat(0-20)	0.59J/g.cm³	Modulus of Elasticity	310Gpa
Young’s Modulus	3.17×104Kg/mm²	Poisson Ratio	0.3(est.)
Tensile Strength	0.13~0.26Gpa	Thermal Expansion Coefficient	[100]:8.2 × 10^-6 /℃ [110]:7.7 × 10^-6 /℃ [111]:7.8 × 10^-6 /℃
Thermal Conductivity	14W/m/K(@25℃ )	Thermal Optical Coefficient (dn/dT)	7.3×10^-6 /℃
Thermal Shock Resistance	790W/m

Laser Properties:

Laser Transition	⁴F_3/2 --> ⁴I_11/2	Laser Wavelength	1.064μm
Photon Energy	1.86×10^-19J@1.064μm	Emission Linewidth	4.5A @1.064μm
Emission Cross Section	2.7~8.8×10^-19cm^-2	Fluorescence Lifetime	230μs
Index of Refraction	1.8197@1064nm