M. Towrie coauthored the 2005 demonstration of spatially offset Raman spectroscopy. Its Raman spectroscopy measurement varied the lateral collection position to distinguish buried and surface signals.[ref]
The Central Laser Facility identifies the researcher as Mike Towrie and describes his work in the Ultra group and optical instrumentation. Such apparatus makes time and wavelength controlled experimental variables, rather than recording only a specimen's overall brightness.[ref]
Mike Towrie by the Central Laser Facility. staff profile, scientific background and Ultra work
An original timing example illustrates a constraint in pump-probe spectroscopy. A laser operating at sends successive pulses apart. If a sample takes to recover, approximately 100 pulse intervals fit into that recovery time. Treating every pulse as an independent measurement of an unperturbed sample would then need justification. The numerical sample is hypothetical; the calculation explains why repetition rate, recovery and excitation conditions belong in an experimental description.
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