A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
NIR induced modulation of the red emission from erbium ions for selective lanthanide imaging
Tekijät: Stefan Krause, Mads Koerstz M, Riikka Arppe-Tabbara, Tero Soukka, Tom Vosch
Kustantaja: IOP PUBLISHING LTD
Julkaisuvuosi: 2018
Journal: Methods and Applications in Fluorescence
Tietokannassa oleva lehden nimi: METHODS AND APPLICATIONS IN FLUORESCENCE
Lehden akronyymi: METHODS APPL FLUORES
Artikkelin numero: ARTN 044001
Vuosikerta: 6
Numero: 4
Sivujen määrä: 6
ISSN: 2050-6120
eISSN: 2050-6120
DOI: https://doi.org/10.1088/2050-6120/aadef1
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/36351249
Upon direct excitation with green light (522 nm), Er3+ ion doped nanoparticles feature a number of radiative and non-radiative decay pathways, leading to distinct and sharp emission lines in the visible and near-infrared (NIR) range. Here we apply, in addition to continuous 522 nm irradiation, a modulated NIR irradiation (1143 nm) to actively control and modulate the red emission intensity (around 650 nm). The modulation of red Er3+ ion emission at a chosen frequency allows us to reconstruct fluorescence images from the Fourier transform amplitude at this particular frequency. Since only the emission from the Er3+ ion is modulated, it allows to selectively recover the lanthanide specific signal, removing any non-modulated auto-fluorescence or background emission resulting from the continuous 522 nm excitation. The modulated emission of specific lanthanides can open up new detection opportunities for selective signal recovery.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
