Ultrafast time-domain spectroscopy based on high-speed asynchronous optical sampling.

  title={Ultrafast time-domain spectroscopy based on high-speed asynchronous optical sampling.},
  author={Albrecht Bartels and Rafael D. Cerna and Clara Kistner and Andreas Thoma and Florian Hudert and Christof Janke and Thomas Dekorsy},
  journal={The Review of scientific instruments},
  volume={78 3},
High-speed asynchronous optical sampling (ASOPS) is a novel technique for ultrafast time-domain spectroscopy (TDS). It employs two mode-locked femtosecond oscillators operating at a fixed repetition frequency difference as sources of pump and probe pulses. We present a system where the 1 GHz pulse repetition frequencies of two Ti:sapphire oscillators are linked at an offset of Deltaf(R)=10 kHz. As a result, their relative time delay is repetitively ramped from zero to 1 ns within a scan time of… CONTINUE READING
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