Ultrafast postprocessing of yttrium aluminum garnet ceramics via femtosecond pulse laser irradiation

Daniel W. Steere; Priyatham Tumurugoti; Shanmugavelayutham K. Sundaram

doi:10.1117/1.OE.56.3.037108

24 March 2017 Ultrafast postprocessing of yttrium aluminum garnet ceramics via femtosecond pulse laser irradiation

Daniel W. Steere, Priyatham Tumurugoti, Shanmugavelayutham K. Sundaram

Author Affiliations +

Optical Engineering, Vol. 56, Issue 3, 037108 (March 2017). https://doi.org/10.1117/1.OE.56.3.037108

Abstract

We studied rapid densification and homogenization of sintered yttrium aluminum garnet (YAG) ceramics via sintering followed by femtosecond pulse laser (800 nm) irradiation. We formed localized, high-density microstructures within a YAG ceramic matrix. The laser irradiated regions were characterized using scanning electron microscopy, elemental mapping, and x-ray diffraction. Our results show that phase separation of YAG into YAlO3 and Al2O3 can be obtained in situ within stoichiometric YAG. With an optimum laser power and processing conditions, this process can be used for producing dense YAG ceramics.

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Daniel W. Steere, Priyatham Tumurugoti, and Shanmugavelayutham K. Sundaram "Ultrafast postprocessing of yttrium aluminum garnet ceramics via femtosecond pulse laser irradiation," Optical Engineering 56(3), 037108 (24 March 2017). https://doi.org/10.1117/1.OE.56.3.037108

Received: 25 November 2016; Accepted: 13 March 2017; Published: 24 March 2017

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