Local terahertz field enhancement for time-resolved x-ray diffraction

被引：20
作者：
Kozina, M. [1 ]
Pancaldi, M. [2 ,3 ]
Bernhard, C. [4 ]
van Driel, T. [1 ]
Glownia, J. M. [1 ]
Marsik, P. [4 ]
Radovic, M.
Vaz, C. A. F. [5 ]
Zhu, D. [1 ]
Bonetti, S. [3 ]
Staub, U. [5 ]
Hoffmann, M. C. [1 ]
机构：
[1] SLAC Natl Accelerator Lab, Linac Coherent Light Source, Menlo Pk, CA 94025 USA
[2] CIC nanoGUNE, E-20018 Donostia San Sebastian, Spain
[3] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden
[4] Univ Fribourg, Dept Phys, Chemin Musee 3, CH-1700 Fribourg, Switzerland
[5] Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland
来源：
APPLIED PHYSICS LETTERS | 2017年 / 110卷 / 08期
基金：
瑞士国家科学基金会;
关键词：
COHERENT-LIGHT SOURCE; SPIN DYNAMICS; THZ-PULSE; FERROELECTRICITY; GENERATION;
D O I：
10.1063/1.4977088
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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. Published by AIP Publishing.
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页数：5
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