Picosecond Relaxation of Photoexcitations in a LiLuF 4 :Ce 3+  Crystal

A. V. Leontyev; L. A. Nurtdinova; D. K. Zharkov; A. G. Shmelev; V. S. Lobkov

doi:10.3103/S1062873818080245

Picosecond Relaxation of Photoexcitations in a LiLuF₄:Ce³⁺ Crystal

Autores: Leontyev A.V.¹, Nurtdinova L.A.², Zharkov D.K.¹, Shmelev A.G.¹, Lobkov V.S.¹
Afiliações:
1. Zavoisky Physical-Technical Institute
2. Kazan Federal University
Edição: Volume 82, Nº 8 (2018)
Páginas: 1018-1021
Seção: Proceedings of the XII International Scientific School-Seminar “Fundamental Research and Innovation: Nanooptics, Photonics, and Coherent Spectroscopy”
URL: https://journals.rcsi.science/1062-8738/article/view/185978
DOI: https://doi.org/10.3103/S1062873818080245
ID: 185978

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The characteristic durations of energy exchange for Ce³⁺ impurity centers with lattices in a LiLuF₄ crystal and the characteristic lifetime of free photoexcited charge carriers are determined in time-resolved experiments using a pump–probe scheme. The absorption saturation parameters of femtosecond laser pulses with a wavelength of 263 nm are characteristic of a slow absorber that participates in absorption from the excited state.