Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Direct confocal lifetime measurements on rare-earth-doped media exhibiting radiation trapping
Show others and affiliations
2017 (English)In: Optical Materials Express, ISSN 2159-3930, E-ISSN 2159-3930, Vol. 7, no 2, 527-532 p.Article in journal (Refereed) Published
Abstract [en]

Radiation trapping occurs in rare-earth-doped active media with strong spectral overlap of luminescence and ground-state absorption. It is demonstrated experimentally that a confocal measurement mitigates the influence of radiation trapping on the measured luminescence lifetime, hence allowing for direct extraction of the lifetime from the measured decay curves. The radiation trapping effect is largely suppressed by probing a small sample volume and rejecting the photons reemitted from the unpumped region. This non-destructive measurement method is applied to ytterbium (Yb3+) activated potassium double tungstate crystalline layers with Yb3+ concentrations ranging from 1.2 at.% up to 76 at.% (~8 × 1019 - 5 × 1021 cm-3). The measured lifetime values are comparable to the results reported for Yb3+-doped potassium double tungstate powder diluted in liquid.

Place, publisher, year, edition, pages
OSA - The Optical Society , 2017. Vol. 7, no 2, 527-532 p.
Keyword [en]
Ground state, Light, Luminescence, Potassium, Rare earths, Tungsten compounds, Ytterbium, Crystalline layers, Direct extraction, Double tungstates, Ground state absorption, Lifetime measurements, Luminescence lifetime, Non-destructive measurement, Radiation trapping, Radiation
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-207394DOI: 10.1364/OME.7.000527ISI: 000394173200025ScopusID: 2-s2.0-85011933930OAI: oai:DiVA.org:kth-207394DiVA: diva2:1106716
Note

QC 20170608

Available from: 2017-06-08 Created: 2017-06-08 Last updated: 2017-06-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Pollnau, Markus
By organisation
Materials- and Nano Physics
In the same journal
Optical Materials Express
Atom and Molecular Physics and Optics

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 3 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf