Er3+ + Yb3+-codoped Al2O3 crystal fibres for high-temperature sensing

Seat, H.C. and Sharp, J.H. (2003) Er3+ + Yb3+-codoped Al2O3 crystal fibres for high-temperature sensing. Measurement Science and Technology, 14(3), pp. 279-285. (doi: 10.1088/0957-0233/14/3/305)

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Single-crystal sapphire fibres codoped with approximately equal amounts of rare-earth (RE) Er3+ and Yb3+ ions have been fabricated by the laser heated pedestal growth technique. The crystal fibres are then investigated for high-temperature sensing applications. Due to the unique transitions from the 4f electronic configuration in RE ions together with the high dopant concentrations used, strong upconverted emission in the visible has been observed. In particular, emissions in the green and red spectral regions have been exploited in an intensity-based sensing scheme for thermometric measurements up to ~ 1320 and 1420 K respectively.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Sharp, Dr James
Authors: Seat, H.C., and Sharp, J.H.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Measurement Science and Technology

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