TY  - JOUR
ID  - pittir23747
UR  - http://d-scholarship-dev.library.pitt.edu/23747/
IS  - 3
A1  - Ma, L
A1  - Sikirzhytski, V
A1  - Hong, Z
A1  - Lednev, IK
A1  - Asher, SA
Y1  - 2013/03/01/
N2  - 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.
JF  - Applied Spectroscopy
VL  - 67
SN  - 0003-7028
TI  - Insight into resolution enhancement in generalized two-dimensional correlation spectroscopy
SP  - 283 
AV  - public
EP  -  290
ER  -