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首页> 外文期刊>Optics Letters >Two-color facility based on a broadly tunable infrared free-electron laser and a subpicosecond-synchronized 10-fs-Ti : Sapphire laser
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Two-color facility based on a broadly tunable infrared free-electron laser and a subpicosecond-synchronized 10-fs-Ti : Sapphire laser

机译：基于可广泛调谐的红外自由电子激光器和亚皮秒同步10-fs-Ti：蓝宝石激光器的双色设备

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Subpicosecond synchronization between a mirror-dispersion-controlled 10-fs Ti:sapphire laser and the Free-Electron Laser for Infrared Experiments has been achieved. The measured intensity cross correlation between the two lasers is consistent with a jitter of only 400 fs rms. The wide and continuous tunability of the free-electron laser (FEL; 4.2-300 mu m) combined with ultrashort pulse duration of six optical cycles and high pulse energy of several tens of microjoules makes a series of two-color experiments possible in a previously inaccessible wavelength range. We demonstrate these capabilities by performing a two-color pump-probe experiment to study carrier cooling in GaAs. A FEL tuned from 8 to 17 mu m is used as the pump, and a synchronized Ti:sapphire laser pulse serves as the probe. (C) 1998 Optical Society of America. [References: 12]
机译：实现了镜面色散控制的10-fs Ti：蓝宝石激光器与用于红外实验的自由电子激光器之间的亚皮秒同步。在两个激光器之间测得的强度互相关与仅400 fs rms的抖动一致。自由电子激光器的宽而连续的可调谐性（FEL; 4.2-300μm），加上六个光学周期的超短脉冲持续时间和数十微焦耳的高脉冲能量，使得以前的一系列双色实验成为可能无法进入的波长范围。我们通过执行双色泵浦探针实验来研究GaAs中的载流子冷却，从而证明了这些功能。将FEL调整为8至17μm用作泵，并使用同步的Ti：蓝宝石激光脉冲作为探针。 （C）1998年美国眼镜学会。 [参考：12]

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