Optimal spectral phase control of femtosecond laser-induced up-conversion luminescence in Sm3+:NaYF4 glass

  • Jian Ping Li
  • , Lian Zhong Deng*
  • , Ye Zheng
  • , Peng Peng Ding
  • , Tian Qing Jia
  • , Zhen Rong Sun
  • , Jian Rong Qiu
  • , Shi An Zhang
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The spectral phase of the femtosecond laser field is an important parameter that affects the upconversion (UC) luminescence efficiency of dopant lanthanide ions. In this work, we report an experimental study on controlling the UC luminescence efficiency in Sm3+:NaYF4 glass by 800-nm femtosecond laser pulse shaping using spectral phase modulation. The optimal phase control strategy efficiently enhances or suppresses the UC luminescence intensity. Based on the laser-power dependence of the UC luminescence intensity and its comparison with the luminescence spectrum under direct 266-nm femtosecond laser irradiation, we propose herein an excitation model combining non-resonant two-photon absorption with resonance-mediated three-photon absorption to explain the experimental observations.

Original languageEnglish
Article number22603
JournalFrontiers of Physics
Volume15
Issue number2
DOIs
StatePublished - 1 Apr 2020

Keywords

  • femtosecond laser
  • quantum control
  • rare earth ions
  • spectral phase
  • up-conversion luminescence

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