relation: http://d-scholarship-dev.library.pitt.edu/23747/
title: Insight into resolution enhancement in generalized two-dimensional correlation spectroscopy
creator: Ma, L
creator: Sikirzhytski, V
creator: Hong, Z
creator: Lednev, IK
creator: Asher, SA
description: Generalized two-dimensional correlation spectroscopy (2D-COS) can be used to enhance spectral resolution in order to help differentiate highly overlapped spectral bands. Despite the numerous extensive 2D-COS investigations, the origin of the 2D spectral resolution enhancement mechanism(s) is not completely understood. In the work here, we studied the 2D-COS of simulated spectra in order to develop new insights into the dependence of 2D-COS spectral features on the overlapping band separations, their intensities and bandwidths, and their band intensity change rates. We found that the features in the 2D-COS maps that are derived from overlapping bands were determined by the spectral normalized half-intensities and the total intensity changes of the correlated bands. We identified the conditions required to resolve overlapping bands. In particular, 2D-COS peak resolution requires that the normalized half-intensities of a correlating band have amplitudes between the maxima and minima of the normalized half-intensities of the overlapping bands. © 2013 Society for Applied Spectroscopy.
date: 2013-03-01
type: Article
type: PeerReviewed
format: application/pdf
language: en
rights: attached
identifier: http://d-scholarship-dev.library.pitt.edu/23747/1/as-67-3-283.pdf
format: text/plain
language: en
rights: attached
identifier: http://d-scholarship-dev.library.pitt.edu/23747/4/licence.txt
identifier:   Ma, L and Sikirzhytski, V and Hong, Z and Lednev, IK and Asher, SA  (2013) Insight into resolution enhancement in generalized two-dimensional correlation spectroscopy.  Applied Spectroscopy, 67 (3).  283 - 290.  ISSN 0003-7028     
relation: 10.1366/11-06541