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Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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A thermometry technique based on atomic lineshapes using diode laser LIF in flames

Burns, I.S. and Hult, J. and Hartung, G. and Kaminski, C.F. (2007) A thermometry technique based on atomic lineshapes using diode laser LIF in flames. Proceedings of the Combustion Institute, 31 (1). pp. 775-782. ISSN 1540-7489

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Abstract

We report on the development of a novel diode laser thermometry technique permitting temperature measurements in flames based on the fluorescence lineshapes of an atomic tracer species. The technique, which we term OLAF (one-line atomic fluorescence) requires only a single diode laser source for excitation, is simple to implement, and has excellent spatial resolution. Temperatures are deduced from the 5(2)P(1/2) -> 6(2)S(1/2) transition of atomic indium, the lineshape of which is highly sensitive to temperature changes at typical flame conditions. A rigorous validation is performed in a reference flame withcomparisons to measurements by CARS and by Na-line reversal, and to numerical simulations.