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Dresden 2020 – wissenschaftliches Programm

Die DPG-Frühjahrstagung in Dresden musste abgesagt werden! Lesen Sie mehr ...

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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur

KFM 15: Postersession KFM

KFM 15.19: Poster

Donnerstag, 19. März 2020, 16:00–18:30, P2/1OG

Thermal investigation of nonlinear crystals for high power ultrashort MID-IR OPCPA pumped at 1 micrometerMahesh Namboodiri1, •Gregor Indorf2, Torsten Golz2, Jan H. Buss2, Michael Schulz2, Robert Riedel2, Tim Laarman1,3, and Mark J. Prandolini21Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany — 2Class 5 Photonics GmbH, Notkestraße 85, 22607 Hamburg, Germany — 3The Hamburg Centre for Ultrafast Imaging CUI, Luruper Chaussee 149, Hamburg 22761, Germany

Mid-Infrared (Mid-IR) OPCPA lasers delivering ultrashort, high rep-rate and high-power levels are of considerable interest for vibrational spectroscopy, label-free microscopy and ultrafast vibrational dynamics by directly addressing the electronic ground state of the system under investigation. These high power lasers require nonlinear crystals (NLC) having a high nonlinear susceptibility and transparency in the Mid-IR range. We have therefore selected a few NLCs for the present study and compare their linear and nonlinear absorption coefficients along with nonlinear refractive index pumped at 1 micrometer. In particular, we have used the crystal LGS for high power laser studies at 8 micrometer.

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