Random lasing in a nanocrystaline Nd<sup>3+</sup>:YVO<sub>4</sub> powder is demonstrated for the first time. Lasing action is demonstrated by a method that analyzes the decay kinetics after long-pulse excitation. This method permits to measure the fractional contribution of each component produced in the random laser as a function of the pump intensity, namely spontaneous and stimulated emission as well as upconversion.
© 2010 The Optical Society
N. U. Wetter, R. J. R. Vieira, and L. Gomes, "Determining the Upconversion Luminescence in a Diode-pumped Nanocrystaline Nd<sup>3+</sup>:YVO<sub>4</sub> Random Laser," in Latin America Optics and Photonics Conference, OSA Technical Digest (CD) (Optical Society of America, 2010), paper PDPTuJ6.
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