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Light-in-flight (LIF) recording by digital holography (DH) based on obliquely sweeping the reference pulse on the imaging plane, a form of space division [50]. (a) Experimental setup for recording the hologram. (b) Representative frames of single ultrashort laser pulses’ movement on a USAF resolution target. The time interval between frames is 192 fs. The white arrow points to the features of the USAF resolution target.
