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arXiv · 1701.09161

Local Terahertz Field Enhancement for Time-Resolved X-ray Diffraction

Michael Kozina·Matteo Pancaldi·Christian Bernhard·Tim van Driel·J. Michael Glownia·Premysl Marsik·Milan Radovic·Carlos A. F. Vaz·Diling Zhu·Stefano Bonetti·Urs Staub·Matthias C. Hoffmann
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Abstract

We report local field strength enhancement of single-cycle terahertz (THz) pulses in an ultrafast time-resolved x-ray diffraction experiment. We show that patterning the sample with gold microstructures increases the THz field without changing the THz pulse shape or drastically affecting the quality of the x-ray diffraction pattern. We find a five-fold increase in THz-induced x-ray diffraction intensity change in the presence of microstructures on a SrTiO3 thin-film sample.

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Michael Kozina, Matteo Pancaldi, Christian Bernhard, Tim van Driel, J. Michael Glownia, Premysl Marsik, Milan Radovic, Carlos A. F. Vaz, Diling Zhu, Stefano Bonetti, Urs Staub, Matthias C. Hoffmann. 2017-01-31. Local Terahertz Field Enhancement for Time-Resolved X-ray Diffraction. https://doi.org/10.1063/1.4977088

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