title: Spectral shearing interferometer with frequency- and time-resolved sum-frequency mixing.
abstract: A two-dimensional spectral-shearing interferogram has been acquired instantaneously by frequency- and time-resolved sum-frequency conversion where the phase-matching angle and transverse-delay of crossed-pump beams in a nonlinear crystal serve as frequency-time decomposed imaging. The two spectrally sheared components travel the same path after upconversion. A picoseconds delay-scanned interferogram is accumulated on a 2D image sensor.
authors.affiliation: Institute for Laser Science, the University of Electro-Communications, Chofu, Tokyo, Japan. tomita@ils.uec.ac.jp
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Tomita
authors.forename: Hajime
authors.initials: H
authors.lastname: Nishioka