Optical delay line for high time resolution measurement: W-type delay line.
We propose and demonstrate a newly designed optical delay line (W-type delay line) that improves the resolution of optical path length, namely, time resolution, by an order of more than 3 in comparison to the spatial resolution of a conventionally used translational stage. Using a conventional mechanical translational stage having a spatial resolution of 1 mum, the performance of the W-type delay line was evaluated by interferometric measurements with a diode laser, and the time resolution of 16 as was confirmed.
Hashimoto
Kyohei
K
Molecular Photoscience Research Center, Kobe University, 1-1 Rokko-dai, Nada-ku, Kobe 657-8501, Japan.
Kano
Satoru S
SS
Wada
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