标题： 使用自由运行脉冲激光器的异步光学采样太赫兹光谱抖动校正 显示英文标题

标题： Jitter correction for asynchronous optical sampling terahertz spectroscopy using free-running pulsed lasers

摘要： 我们展示了一种用于异步光学采样（ASOPS）太赫兹（THz）时域光谱的抖动校正方法，该方法使用两个自由运行的振荡器。该方法同时记录太赫兹波形和激光重复频率差的谐波，以监测抖动信息用于软件抖动校正。通过将残余抖动抑制在0.1 ps以下，实现了太赫兹波形的累积而不损失测量带宽。我们的水蒸气测量成功解析了低于1 GHz的吸收线宽，证明了一种具有灵活、简单和紧凑结构的鲁棒ASOPS，无需任何反馈控制或额外的连续波太赫兹源。 显示英文摘要

摘要： We demonstrate a jitter correction method for asynchronous optical sampling (ASOPS) terahertz (THz) time-domain spectroscopy using two free-running oscillators. This method simultaneously records the THz waveform and a harmonic of the laser repetition rate difference, to monitor the jitter information for software jitter correction. By suppressing the residual jitter below 0.1 ps, the accumulation of the THz waveform is achieved without losing the measurement bandwidth. Our measurement of water vapor successfully resolves the absorption linewidths below 1 GHz, demonstrating a robust ASOPS with a flexible, simple, and compact setup without any feedback control or additional continuous-wave THz source.