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Neodymium-doped yttrium orthovanadate



Neodymium-doped yttrium orthovanadate (Nd:YVO4) is a crystalline material formed by adding neodymium ions to yttrium orthovanadate. It is commonly used as an active laser medium for diode-pumped solid-state lasers. It comes as a transparent blue-tinted material. It is birefringent, therefore rods made of it are usually rectangular.

Additional recommended knowledge

Contents

Basic properties

  • Atomic density: ~1.37×1020 atoms/cm2
  • Thermal expansion coefficient:
    • αa=4.43×10-6/K
    • αc=11.37×10-6/K

Optical properties

  • Lasing wavelengths : 914 nm, 1064 nm, 1342 nm
  • Crystal class : positive uniaxial, no=na=nb, ne=nc,
    • no=1.9573, ne=2.1652, at 1064 nm
    • no=1.9721, ne=2.1858, at 808 nm
    • no=2.0210, ne=2.2560, at 532 nm
Nd concentration (atom %)Fluorescence lifetime (μs)@ 1064nmReference
0.4110J. Appl. Phys. 49, 5517-5522 (1978).
1.0100Castech web site
1.190Casix web site
2.050Casix web site
  • Absorption cross-section at 808nm : 5.5×10-20 cm²
  • Emission cross-section at 1064nm : 38×10-19 cm² (Reference: JOSA 66, 1405-1414 (1976).)
  • Polarized laser emission : π-polarization; parallel to optic axis (c-axis) (for a-cut crystal)
  • Gain bandwidth : 0.96 nm (257 GHz) at 1064 nm (for 1.1 atm% Nd doped)

See also

References

  • . E. Rast, H. H. Caspers, and S. A. Miller (1968). "Infrared Spectral Emittance and Optical Properties of Yttrium Vanadate". Phys. Rev. 169 (3): 705 - 709. doi:10.1103/PhysRev.169.705.
  • O. Guillot-Noel, B. Bellamy, B. Viana, D. Gourier (1999). "Correlation between rare-earth oscillator strengths and rare-earth–valence-band interactions in neodymium-doped YMO4 (M=V, P, As), Y3Al5O12, and LiYF4 matrices". Phys. Rev. B 60 (3): 1668 - 1677. doi:10.1103/PhysRevB.60.1668.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Neodymium-doped_yttrium_orthovanadate". A list of authors is available in Wikipedia.
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