Tunable light source for narrowband laser excitation: application to Raman spectroscopy

in: Laser Physics Letters (2009)
Vater, Erik; Bergner, Gero; Akimov, Denis; Schlücker, Sebastian; Bartelt, Hartmut; Dietzek, Benjamin; Popp, Jürgen
In many laser spectroscopic techniques, such as fluorescence Raman and resonance Raman spectroscopy the choice of laser excitation wavelength is of central importance. Thus, it is desirable to have a single laser light source where the wavelength can be tuned fast, easily and continuously without the necessity of changing the optical alignment. Here, such a light source is presented combining a broad spectrum with a spatial light modulator as tunable filter. The feasibility of this setup for Raman spectroscopy is demonstrated.

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