Temperature of broadband anti-Stokes white emission in LiYbP{sub 4}O{sub 12}: Er nanocrystals

Journal Article · Mon Oct 27 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4900965· OSTI ID:22310677

Strek, W.; Hreniak, D. ^[1]; Guyot, Y. ^[2]

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1. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wrocław (Poland)
2. Institute Light Matter (ILM), UMR5306 CNRS-University Lyon1, University of Lyon, 69622 Villeurbanne (France)

The up-conversion emission of LiYb{sub 0.99}Er{sub 0.01}P{sub 4}O{sub 12} nanocrystals was investigated in vacuum upon the focused beam of infrared laser excitation. The intense white broad band emission was observed above the threshold power of 800 mW. An increase of excitation power results in enhancement of temperature of emitting nanocrystals. The temperature of nanocrystals was determined following the thermally equilibrated f-f emission transitions of Er{sup 3+} ions. The highest measured temperature of white emission was determined to be about 900 K. It is concluded that the black body radiation is not responsible for the white broad band emission.

• OSTI ID: 22310677
• Journal Information: Applied Physics Letters, Vol. 105, Issue 17; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
77 NANOSCIENCE AND NANOTECHNOLOGY
BEAMS
BLACKBODY RADIATION
CONVERSION
EMISSION
ERBIUM ADDITIONS
EXCITATION
LASER RADIATION
LITHIUM COMPOUNDS
NANOSTRUCTURES
PHOSPHATES
RAMAN SPECTROSCOPY
VISIBLE RADIATION
YTTERBIUM COMPOUNDS