Raman crystal lasers in the visible and near-infrared |
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Authors: | Eichler H J Gad G M A Kaminskii A A Rhee H |
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Affiliation: | Optical Institute, Technical University of Berlin, Strasse des 17. Juni 135, D-10623 Berlin, Germany. eichler@physik.tu_berlin.de |
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Abstract: | Raman lasers based on potassium gadolinium tungstate and lead tungstate crystals pumped by a to approximately 120 ps Nd: YAG laser at 1.064 microm were developed. High reflection mirrors for the Stokes wavelength have been used to generate near-infrared and eye safe spectral region of 1.15 - 1.32 microm. Second harmonic generation of the generated Raman lasers was observed. Eifficient multiple Stokes and anti-Stokes picosecond generation in 64 crystals have been shown to exhibit stimulated Raman scattering on about 700 lines covering the whole visible and near-infrared spectrum. All stimulated Raman scattering (SRS) wavelengths in the visible and near-infrared spectrum are identified and attributed to the SRS-active vibration modes of these crystals. |
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