Abstract

Dynamic two-dimensional infrared (2D IR) correlation maps are a convenient means of examining the information contained in time-resolved IR spectra. Dynamic 2D IR spectra can be collected with the use of either dispersive or Fourier transform (FT) IR spectrometers. Use of a step-scanning FT-IR spectrometer has advantages over conventional rapid-scan FT-IR spectrometry when one is acquiring time-resolved IR data on time scales faster than about 0.1 s, because the spectral multiplexing is removed from the time domain. Dynamic IR spectra of atactic polystyrene (undergoing a small-amplitude oscillatory strain) collected on both dispersive and FT instrumentation are compared. Although the dispersive approach produces higher signal-to-noise ratios over small spectral regions, the multiplex advantage makes the FT approach attractive when broader spectral coverages are required. The first vibrational circular dichroism (VCD) spectrum [of(–)-α-pinene] collected on a step-scanning interferometer is also presented.

Instrumental Aspects of Synchrotron XUV Spectroscopy

R. P. Madden, D. L. Ederer, and K. Codling
Appl. Opt. 6(1) 31-38 (1967)

Ultrafast pH-jump two-dimensional infrared spectroscopy

Jennifer C. Flanagan and Carlos R. Baiz
Opt. Lett. 44(20) 4937-4940 (2019)

Ultrafast nonequilibrium Fourier-transform two-dimensional infrared spectroscopy

Carlos R. Baiz, Matthew J. Nee, Robert McCanne, and Kevin J. Kubarych
Opt. Lett. 33(21) 2533-2535 (2008)

Passively correcting phase drift in two-dimensional infrared spectroscopy

Feng Ding, Prabuddha Mukherjee, and Martin T. Zanni
Opt. Lett. 31(19) 2918-2920 (2006)

Active phase stabilization in Fourier-transform two-dimensional infrared spectroscopy

Victor Volkov, Roland Schanz, and Peter Hamm
Opt. Lett. 30(15) 2010-2012 (2005)