Laser Specifications
-
Nd _2 O_3 (wt %): 4.0
-
Nd^3+ conc. (10^20 ions / cm^3): 3.9 ± 0.1
-
Cross section for stimulated emission (10^-20 cm^2): 4.3 ± 0.1
-
Lifetime at 1053 nm (μsec)*:
≥ 375 (Nd_2 O_3 : 0.5 wt %)
≥ 365 (Nd_2 O_3 : 1.2 wt %)
≥ 320 (Nd_2 O_3 : 3.5 wt %)
≥ 315 (Nd_2 O_3 : 4.2 wt %)
-
Effective bandwidth (nm): 24.5
-
Fluorescence peak wavelength (nm): 1053
-
Absorption coefficient (cm^-1):
≤ 0.0015 (1053 nm)
≤ 0.25 (400 nm)
≤ 1.5 (3333 nm)
Optical Specifications
-
Non-linear refractive index coeff. n_2 (× 10^-13 e.s.u): ≤ 1.04
-
Refractive index (1053 nm): 1.505 ± 0.003
-
Abbe value: 68.2
-
dn/dT (10^-6 / ºC) (20 ~ 100 ºC): - 9.0
Thermal Specifications
-
Transformation temp. (ºC): 408
-
Softening temp. (ºC): 448
-
Coeff. of linear thermal expansion (10^-7 / K) (30 ~ 100 ºC): 141
-
Coeff. of linear thermal expansion (10^-7 / K) (30 ~ 300 ºC): 160
-
Thermal coeff. of optical path length (10^-6 / K) (50 ~ 100 ºC): -1.9
Chemical Specifications
-
D_w (H_2O 98ºC) (mg / (cm^2/day)): 2.2
Other Specifications
-
Density (g / cm^3): 2.70
-
Young’s modulus (G Pa): 45.2
-
Posson’s ratio: 0.26
-
Knoop hardness (kg / cm^2): 302
-
Fracture toughness (MPa· m ^1/2): 0.66