Infrared-to-visible upconversion in thin films of LaEr(MoO{sub 4}){sub 3}

LaEr(MoO{sub 4}){sub 3} thin films have been grown by pulsed laser deposition. The films were characterized by x-ray diffraction, Rutherford backscattering, and fluorescence measurements. The results show that the deposited films were epitaxial with their c axis oriented along the surface normal. Fi...

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Bibliographic Details
Published in:Applied physics letters 2005-09, Vol.87 (13)
Main Authors: Bubb, D.M., Cohen, D., Qadri, S.B., Department of Physics, Seton Hall University, South Orange, New Jersey 07079, Naval Research Laboratory, Code 6372, Washington, DC 20375
Format: Article
Language:English
Subjects:
EMISSION SPECTRA
ENERGY BEAM DEPOSITION
EPITAXY
ERBIUM COMPOUNDS
FERROELECTRIC MATERIALS
FLUORESCENCE
LANTHANUM COMPOUNDS
LASER RADIATION
MATERIALS SCIENCE
MOLYBDATES
PHOSPHORS
PULSED IRRADIATION
RUTHERFORD BACKSCATTERING SPECTROSCOPY
THIN FILMS
VISIBLE RADIATION
X-RAY DIFFRACTION
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Summary:LaEr(MoO{sub 4}){sub 3} thin films have been grown by pulsed laser deposition. The films were characterized by x-ray diffraction, Rutherford backscattering, and fluorescence measurements. The results show that the deposited films were epitaxial with their c axis oriented along the surface normal. Films illuminated with 980 nm laser light show visible emission spectra. This visible emission arises as a result of the Er 4f-4f transitions and their lifetimes. Such so-called 'upconverting phosphors' are important to the development of new chemical and biological sensing applications.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2067712