时间分辨X射线衍射的太赫兹局域场增强
Local Terahertz Field Enhancement for Time-Resolved X-ray Diffraction
摘要：
我们报道了在超快时间分辨X射线衍射实验中，单周期太赫兹脉冲的局部场强增强。我们发现，图案化的样品与金微结构增加太赫兹场，而不改变太赫兹脉冲的形状或显着影响的X射线衍射图案的质量。我们发现在SrTiO 3薄膜样品上存在微结构时，太赫兹诱导的X射线衍射强度变化增加了五倍。
英文摘要：
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.
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