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Article Dans Une Revue Optics Express Année : 2020

Background-suppressed SRS fingerprint imaging with a fully integrated system using a single optical parametric oscillator

Alberto Lombardini
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Pascal Berto
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Julien Duboisset
Esben Ravn Andresen
Sandro Heuke
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Edlef Büttner
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Ingo Rimke
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Herve Rigneault

Résumé

Stimulated Raman Scattering (SRS) imaging can be hampered by non-resonant parasitic signals that lead to imaging artifacts and eventually overwhelm the Raman signal of interest. Stimulated Raman gain opposite loss detection (SRGOLD) is a three-beam excitation scheme capable of suppressing this nonlinear background while enhancing the resonant Raman signal. We present here a compact electro-optical system for SRGOLD excitation which conveniently exploits the idler beam generated by an optical parametric oscillator (OPO). We demonstrate its successful application for background suppressed SRS imaging in the fingerprint region. This system constitutes a simple and valuable add-on for standard coherent Raman laser sources since it enables flexible excitation and background suppression in SRS imaging.
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Dates et versions

hal-02557904 , version 1 (14-05-2020)

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Citer

Alberto Lombardini, Pascal Berto, Julien Duboisset, Esben Ravn Andresen, Sandro Heuke, et al.. Background-suppressed SRS fingerprint imaging with a fully integrated system using a single optical parametric oscillator. Optics Express, 2020, 28 (10), pp.14490-14502. ⟨10.1364/OE.390381⟩. ⟨hal-02557904⟩
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