Controllable temporal twisting polarization within an ultrafast laser pulse
Xuanren Jiang,
Zhangyu Zhou,
Changjun Min
et al.
Abstract:We propose a method for controlling the time-varying polarization of optical pulses by introducing a quarter-wave plate into a 4-f pulse shaper and using a spatial light modulator to impose a group delay. This setup enables the polarization state of the incident pulse to vary over time. Specifically, for linearly chirped incident pulses, the polarization ellipse twists uniformly over time, while its ellipticity changes monotonically. As the group delay increases, the pulse intensity gradually splits in the tim… Show more
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