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American Institute of Physics, Applied Physics Letters, 8(110), p. 081106

DOI: 10.1063/1.4977088

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

Journal article published in 2017 by Michael Kozina ORCID, Matteo Pancaldi ORCID, Christian Bernhard, Tim van Driel, J. Michael Glownia, Premysl Marsik ORCID, Milan Radovic ORCID, Carlos A. F. Vaz ORCID, Diling Zhu, Stefano Bonetti ORCID, Urs Staub, Matthias C. Hoffmann ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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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. ; Comment: 10 pages, 4 figures