RT Journal Article
T1 Chirp-dependent dual light emission in Na0.95Er0.05Nb0.9Ti0.1O3 perovskite
A1 Pérez Benito, Óscar
A1 Antón, Miguel Ángel
A1 Urones Garrote, Esteban
A1 García Martín, Susana
A1 García González, Esther
A1 Weigand Talavera, Rosa María
AB Polar Na0.95Er0.05Nb0.9Ti0.1O3 perovskite has been synthesized as a nanostructured material by microwave assisted hydrothermal method. The characterization indicates that erbium is a constituent of the crystal structure and is preferentially located in sodium positions. The compound combines the nonlinear optical properties of the host (NaNb0.9Ti0.1O2.95) and the fluorescent properties of the Er3+-dopant. Under excitation by a single femtosecondm (< 10 fs) laser in the near-infrared region, simultaneous dual emission signals of second harmonic generation (SHG) and up-converting fluorescence (UCF) are observed and the nonlinear dependencies of the SHG and UCF intensities on the excitation intensity are measured. In addition, both emissions are shown to be sensitive to the chirp of the exciting pulses, and for UCF, it can be explained by means of a simple theoretical model based on the density matrix equations. These nano-structured particles with chirp-dependent dual behavior can be very advantageous when used in biological systems, since they can provide complementary information in different spectral ranges and tissues and are susceptible of coherent control, which can be both useful in optical microscopy and bioimaging.
PB Elsevier
YR 2022
FD 2022-05-15
LK https://hdl.handle.net/20.500.14352/112917
UL https://hdl.handle.net/20.500.14352/112917
LA eng
NO Óscar Pérez-Benito, Miguel Ángel Antón, Esteban Urones-Garrote, Susana García-Martín, Ester García-González, Rosa Weigand, Chirp-dependent dual light emission in Na0.95Er0.05Nb0.9Ti0.1O3 perovskite, Optical Materials, Volume 129, 2022, 112500, ISSN 0925-3467
NO MICINN/AEI
NO MINECO/AEI
DS Docta Complutense
RD 7 abr 2025