- Title
- Fluorescence measurements of Christmas Island stalagmite banding
- Creator
- Birt, Kimberley; Holdsworth, John; Reuter, Kurtis; Duck, Benjamin; King, Bruce; Drysdale, Russell
- Relation
- Australasian Conference on Optics, Lasers and Spectroscopy and Australian Conference on Optical Fibre Technology in Association with the International Workshop on Dissipative Solitons 2009 (ACOLS ACOFT 09). ACOLS ACOFT 09 Conference: Proceedings of the Australasian Conference on Optics, Lasers and Spectroscopy and Australian Conference on Optical Fibre Technology (Adelaide, S.A. 29 November - 3 December, 2009) p. 448-449
- Relation
- http://aos.physics.mq.edu.au
- Publisher
- Australian Optical Society
- Resource Type
- conference paper
- Date
- 2009
- Description
- The fluorescence from organic residue incorporated in seasonal growth of stalagmites offers a snapshot of climatic conditions in past millennia. Fluorescence from prepared specimens may be measured routinely with millimetre spatial precision however the residue bands contain finer detail that this work seeks to resolve. Banding is evident in measured fluorescence from humic and fulvic acids with a spatial resolution of 250 μm using multimode optical fibres and 325 nm HeCd laser excitation. Single mode fibres offer the potential for even greater resolution at the expense of signal throughput.
- Subject
- fluorescence detection; optical fibre bundles; UV laser
- Identifier
- http://hdl.handle.net/1959.13/919763
- Identifier
- uon:8976
- Identifier
- ISBN:1876346612
- Language
- eng
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