Open AccessChromatic diversity: a new approach for characterizing spatiotemporal coupling of ultrashort pulses
Author(s) -
Seung-Whan Bahk,
C. Dorrer,
J. Bromage
Publication year - 2018
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.26.008767
Subject(s) - optics , chromatic scale , physics , chromatic aberration , diffraction , holography , diffraction efficiency , grating , diffraction grating , asymmetry , beam (structure) , quantum mechanics
Two-dimensional chromatic aberrations are characterized by a single-shot scheme based on a simultaneous measurement of chromatically diversified focal spots. The chromatic diversity is introduced by a 2-D grating with holographic defocus terms. The chromatic aberrations in the beam are either subtracted or added by the additional known chromatic aberrations in the grating, depending on the diffraction order. By analyzing the asymmetry in the size of diffracted focal spots, input beam chromatic aberrations can be deduced. Theoretical discussions and experimental results are presented.