All-optical retrieval of the global phase for two-dimensional Fourier-transform spectroscopy.
A combination of spatial interference patterns and spectral interferometry are used to find the global phase for non-collinear two-dimensional Fourier-transform (2DFT) spectra. Results are compared with those using the spectrally resolved transient absorption (STRA) method to find the global phase when excitation is with co-linear polarization. Additionally cross-linear polarized 2DFT spectra are correctly "phased" using the all-optical technique, where the SRTA is not applicable.
Bristow
Alan D
AD
JILA, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440 USA.
Karaiskaj
Denis
D
Dai
Xingcan
X
Cundiff
Steven T
ST