Picture of a black hole

Strathclyde Open Access research that creates ripples...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of research papers by University of Strathclyde researchers, including by Strathclyde physicists involved in observing gravitational waves and black hole mergers as part of the Laser Interferometer Gravitational-Wave Observatory (LIGO) - but also other internationally significant research from the Department of Physics. Discover why Strathclyde's physics research is making ripples...

Strathprints also exposes world leading research from the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Photo-luminescence studies of strontium barium niobate crystals doped with Cr3+ ions

Han, T.P.J. and Jaque, F. and Jaque, D. and Ivleva, L. (2005) Photo-luminescence studies of strontium barium niobate crystals doped with Cr3+ ions. Chemical Physics Letters, 417. pp. 196-199. ISSN 0009-2614

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

This paper reports the photo-luminescence spectroscopic results of Strontium-Barium-Niobate, Srx,Ba1xNb2O5 (SBN, x = 0.61 for near congruent composition) crystals doped with Cr2O, at cryogenic temperature (20 K). The experimental results reveal the need of reassignment of the Cr3+ ions defect centres in this material. For first time, a broad emission band in the near infrared region centred at ca. 950 nm is reported. This emission band has micro-seconds decaytime constant and a FWHM band-width > 1700 cm1 and has been ascribed to the vibronically assisted 4T2 ! 4A2 transition. A much narrower emission band centred at ca. 764 nm with milli-seconds decaytime constant and a FWHM band-width of ca. 170 cm1 is correlated to the 2E ! 4A2 radiative transition (R-line).