Open AccessSpectral shearing interferometer with frequency- and time-resolved sum-frequency mixing
Author(s) -
Hitoshi Tomita,
H. Nishioka
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.017173
Subject(s) - optics , sum frequency generation , picosecond , interferometry , shearing interferometer , shearing (physics) , photon upconversion , spatial frequency , transverse plane , materials science , nonlinear optics , physics , astronomical interferometer , laser , structural engineering , composite material , engineering
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.