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Cerussite, PbCO3 – a new Stimulated Raman Scattering (SRS)-active crystal with high-order Stokes and anti-Stokes lasing

On the 50th anniversary of the discovery of stimulated Raman scattering


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Orthorhombic PbCO3, known as natural crystal cerussite, is presented as a new Stimulated Raman Scattering (SRS)-active crystal. With picosecond laser pumping high-order Raman-induced χ(3) generation is observed. All registered Stokes and anti-Stokes sidebands in the visible and near-IR are identified and attributed to the SRS-promoting phonon mode A1g of the carbonate group, with ωSRS ≈ 1054 cm−1. The first Stokes steady-state Raman gain coefficient in the visible spectral range is estimated as well to a value not less than 4.6 cm·GW−1.