Abstract
A novel type of non-linear Raman microscopy, femtosecond stimulated Raman microscopy (FSRM), is introduced. It employs femtosecond white light pulses and intense picosecond pulses which are derived from a femtosecond laser/amplifier system. The pulses are coupled into a microscope set-up and induce a stimulated Raman process at the focus. The Raman interaction spectrally modulates the white light. These modulations are read-out in multi-channel fashion and allow recording of a complete Raman spectrum of the focal region. By raster-scanning the sample, complete Raman images can be obtained. Raman images of polystyrene beads in water demonstrate the feasibility of the approach.
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42.65.Dr; 42.30.Va; 42.65.Re
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Ploetz, E., Laimgruber, S., Berner, S. et al. Femtosecond stimulated Raman microscopy. Appl. Phys. B 87, 389–393 (2007). https://doi.org/10.1007/s00340-007-2630-x
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DOI: https://doi.org/10.1007/s00340-007-2630-x