Method and apparatus for measuring phase and amplitude of ultrashort light pulses

摘要

An ultra short luminous pulse (S) is directed to interaction (1) with an acoustic signal which is nearly coaxial and is generated by a piezoelectric crystal with electrical control. The diffracted signal output (D) is partly reflected to a first 1 photon detector (2) which is used to measure amplitude and partly transmitted through a non-linear crystal mixer (4) to a second 1 photon detector (3) used to measure phase An Independent claim is also included for : Equipment to provide the optical/acoustic interaction, diffracted signal mixing and detection