Open AccessPost-processing phase-correction algorithm in two-dimensional electronic spectroscopy
Author(s) -
Qiuxiang Meng,
Yizhu Zhang,
Taiming Yan,
Yuhai Jiang
Publication year - 2017
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.006644
Subject(s) - coherence (philosophical gambling strategy) , phaser , algorithm , optics , phase (matter) , computer science , phase retrieval , data processing , spectroscopy , physics , fourier transform , quantum mechanics , operating system
In a typical two-dimensional electronic spectroscopy (2DES) experiment, the timing errors of the coherence and emission time when determining the absolute time zeros usually introduce extraneous spectral phase slopes and distort the 2D spectrum. In this work, a phase-correction method that merely relies on the data post-processing algorithm is proposed. The method allows reconstructing the spectrum by simply subtracting the artificial linear spectral-phase slopes from the phase component of the 2D spectrum along both coherence and emission frequency axes. The new method has the advantages of ease of implementation and no need for the supplementary experiments and iterative fitting algorithm as commonly-used phasing methods, which may improve the phasing issue in 2DES and serve as a cross-check of now available phasing methods.