C. Torres‐Torres, J. Bornacelli, J. Cheang-Wong, L. Rodríguez-Fernández, A. Oliver
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Ultrafast third-order nonlinear ultraviolet response exhibited by ion-implanted silicon nanoparticles in silica
Described herein is the evaluation of the nonlinear ultraviolet transmittance exhibited by Silicon nanoparticles nucleated in a high-purity silica matrix. A saturated absorption was identified as the main physical mechanism responsible for the nonlinear ultraviolet absorption in a nanosecond regime. A single-beam transmittance experiment was carried out with pulses provided by the third harmonic of a Nd:YAG laser system. A two-level model led us to estimate the ultrafast optical response of the nanoparticles. It is highlighted the potential of the sample to control nanophotonic signals.
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