Nd:YAP Crystals

Chemical Formula: YAlO3:Nd3+

Crystal structure: D162h

Lattice Constant: a=5,176, b=5,307, c=7,355

Refractive Index: na=1,929, nb=1,943, nc=1,952

dn/dT: na:9,7x10-6 K-1 nc:14,5x10-6 K-1

Density: 5,35 g/cm3

Melting Point: 1870°C

Specific Heat: 400 J/(kg K)

Thermal Conductivity: 0,11 W/(cm K)

Thermal Expansion: 9,5 x 10-6 K-1 (a axis) 4,3 x 10-6 K-1 (b axis) 10,8 x 10-6 K-1 (c axis)

Knoop Hardness: 977 (a axis)

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Product Detail

Basic properties

Nd:YAP AlO3 perovskite (YAP) is a well known host for solid state lasers. The crystal anisotropy of YAP offers numerous advantages.It permits a small tuning of wavelength by varyingthe wave vector direction in the crystal. Furthermore, the output beam is linearly polarised.
Advantages of Nd:YAP Crystals:
Comparable threshold and slope efficiency at 1079nm to Nd:YAG at 1064nm
Higher efficiency at 1340nm compared to Nd:YAG at 1319nm
Linearly polarized output beam
Higher absorption in water and body fluid of 1340nm compared to 1319nm

Chemical Formula	YAlO3:Nd3+
Crystal structure	D162h
Lattice Constant	a=5,176, b=5,307, c=7,355
Refractive Index	na=1,929, nb=1,943, nc=1,952
dn/dT	na:9,7×10-6 K-1 nc:14,5×10-6 K-1
Density	5,35 g/cm3
Melting Point	1870°C
Specific Heat	400 J/(kg K)
Thermal Conductivity	0,11 W/(cm K)
Thermal Expansion	9,5 x 10-6 K-1 (a axis) 4,3 x 10-6 K-1 (b axis) 10,8 x 10-6 K-1 (c axis)
Knoop Hardness	977 (a axis)

Specifications：

Dopant concentration	Nd 0.7-0.9 at% for cwand pulse t 1079nm 0.85~0.95 at% for cwat 1340nmOther dopant concentrations are available upon request.
Orientation	within 5°
Rod sizes	Diameter 2~10mn Length 20~150mm Upon request of customer
Dimensional tolerances	Diameter +0.00/-0.05mm, Length: ± 0.5mm
Barrel finish	Ground and polished
Parallelism	≤10″
Perpendicularity	≤5′
Flatness	< λ/10 @632.8nm
Surface Quality	10-5(MIL-0-13830B)
Chamfer	0.15±0.05mm
AR Coating Reflectivity	< 0.25% (@W64nm)