18 July 2007 Time-gated real-time pump-probe imaging spectroscopy
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Abstract
An experimental technique which allows one to perform pump-probe transient absorption spectroscopy in real-time is an important tool to study irreversible processes. This is particularly interesting in the case of biological samples which easily deteriorate upon exposure to light pulses, with the formation of permanent photoproducts and structural changes. In particular pump-probe spectroscopy can provide fundamental information for the design of optical chromophores. In this work a real-time pump-probe imaging spectroscopy system has been realized and we have explored the possibility to further reduce the number of laser pulses by using a time-gated camera. We believe that the use of a time-gated camera can provide an important step towards the final goal of pump-probe single shot spectroscopy.
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Raffaele Ferrari, Cosimo D'Andrea, Andrea Bassi, Gianluca Valentini, Rinaldo Cubeddu, "Time-gated real-time pump-probe imaging spectroscopy", Proc. SPIE 6631, Novel Optical Instrumentation for Biomedical Applications III, 663118 (18 July 2007); doi: 10.1117/12.728074; https://doi.org/10.1117/12.728074
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