title: Optical delay line for high time resolution measurement: W-type delay line.
abstract: 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.
authors.affiliation: Molecular Photoscience Research Center, Kobe University, 1-1 Rokko-dai, Nada-ku, Kobe 657-8501, Japan.
authors.forename: Kyohei
authors.initials: K
authors.lastname: Hashimoto
authors.forename: Satoru S
authors.initials: SS
authors.lastname: Kano
authors.forename: Akihide
authors.initials: A
authors.lastname: Wada