The principles of wavefront reconstruction based on a geometric-optical reflection of reconstructing light from the surfaces with constant phase differences between the object and reference waves can also be used for a temporal reconstruction of the object ultrashort pulse [1]. This can be illustrated by the following simple example. Let the object beam consists of two δ-pulses delayed with respect to each other by τ. We suppose that the object and reference beams propagate in opposite directions forward to each other and also that δ-pulse is used as the reference one. In that case the interference fringe structure will consists of two parallel planes separated by a distance τc/2 where c is the velocity of light. If we use the δ-pulse for reconstruction it will be reflected sequentially from one plane and then from the other. The time delay between two reflected pulses will be equal to τ. So, the object pulse temporal structure was reconstructed by simple geometric-optical reflection. The question is: How this mechanism of the object pulse temporal reconstruction relates to the known methods of time-resolved holography ([2, 3] and other)? 1.https://www.researchgate.net/publication/238033164_Ultrashort_light_pulse_scattering_by_3D_interference_fringe_structure

2. Rebane, A., & Feinberg, J. (1991). Time-resolved holography. Nature, 351(6325), 378-380.

3. Mazurenko, Y. T. (1990). Holography of wave packets. Applied Physics B, 50(2), 101-114.