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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 14 — Jul. 5, 2010
  • pp: 14992–15002

Light scattering by pores in transparent Nd:YAG ceramics for lasers: correlations between microstructure and optical properties

R. Boulesteix, A. Maître, J.-F. Baumard, Y. Rabinovitch, and F. Reynaud  »View Author Affiliations


Optics Express, Vol. 18, Issue 14, pp. 14992-15002 (2010)
http://dx.doi.org/10.1364/OE.18.014992


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Abstract

Nd:YAG ceramics for laser applications were elaborated with various residual porosities by reaction-sintering process. The porosity analysis with CLSM and SEM led to the determination of the pore volume fraction after sintering. This study revealed that the mean pore size of Nd:YAG ceramics was around 0.7 µm while the residual porosity was ranging between 10−1% and 10−4%. These pore contents affect the transparency and laser efficiency of ceramics. The analytical model based on the Mie light scattering fairly fits the experimental data. This demonstrates that the porosity in Nd:YAG ceramics should be lower than 10−4% to reach single-crystal laser efficiency.

© 2010 OSA

OCIS Codes
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(160.3380) Materials : Laser materials
(180.6900) Microscopy : Three-dimensional microscopy
(290.0290) Scattering : Scattering

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: April 26, 2010
Revised Manuscript: June 1, 2010
Manuscript Accepted: June 13, 2010
Published: June 29, 2010

Citation
R. Boulesteix, A. Maître, J.-F. Baumard, Y. Rabinovitch, and F. Reynaud, "Light scattering by pores in transparent Nd:YAG ceramics for lasers: correlations between microstructure and optical properties," Opt. Express 18, 14992-15002 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-14-14992


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