Berlin 2005 – wissenschaftliches Programm
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Q: Quantenoptik und Photonik
Q 56: Festkörperlaser I
Q 56.5: Vortrag
Dienstag, 8. März 2005, 17:30–17:45, HU 1072
Cavity enhanced anti-Stokes Raman generation at 957 nm in Ba(NO3)2 — •Gad Gad1, Hanjo Rhee2, Hans Joachim Eichler2 und Thomas Riesbeck2 — 1Physics Department, Faculty of Sciences, Helwan University, Ain Helwan, Cairo, Egypt — 2Institute of Optics, Berlin University of Technology, D-10623 Berlin, Germany
Efficient anti-Stokes Raman generation based on Ba(NO3)2 crystal pumped by a Nd:YAG laser with10 ns pulse width and 186 mJ energy at 1064 nm wavelength has been demonstrated. A 105 mm plano-concave cavity was used to generate anti-Stokes Raman generation at 957 nm wavelength. Maximum conversion efficiency up to 6.4 % with about 12 mJ energy was observed. A 110 picosecond Nd:YAG laser in the single pass geometry resulted in high-order stimulated Raman scattering in the visible and near-IR region from 455 to 1197 nm. All observed Stokes and anti-Stokes have been attributed to the SRS-active vibration mode of about 1047 cm−1 of the Ba(NO3)2 crystal.