Signal enhancement and background cancellation in collinear two-dimensional spectroscopies.

We present a polarization method that significantly improves the signal-to-noise ratio in two-dimensional (2D) spectra collected in a "pump-probe" phase-matching geometry by improving the signal strength and eliminating unwanted background signals. This beam geometry is particularly useful when collecting 2D spectra using a pulse shaper.

[1]  M. Zanni,et al.  Passively correcting phase drift in two-dimensional infrared spectroscopy. , 2006, Optics letters.

[2]  T Feurer,et al.  Programmable common-path vector field synthesizer for femtosecond pulses. , 2007, Optics letters.

[3]  R. Hochstrasser.  Two-dimensional IR-spectroscopy: polarization anisotropy effects , 2001 .

[4]  Martin T Zanni,et al.  Automated 2D IR spectroscopy using a mid-IR pulse shaper and application of this technology to the human islet amyloid polypeptide , 2007, Proceedings of the National Academy of Sciences.

[5]  Andrei Tokmakoff,et al.  Two-dimensional Fourier transform spectroscopy in the pump-probe geometry. , 2007, Optics letters.

[6]  D. Jonas,et al.  Two-Dimensional Electronic Correlation and Relaxation Spectra: Theory and Model Calculations , 1999 .

[7]  R. Hochstrasser,et al.  Unusual vibrational dynamics of the acetic acid dimer , 2001 .

[8]  R. Hochstrasser,et al.  Heterodyned Two-Dimensional Infrared Spectroscopy of Solvent-Dependent Conformations of Acetylproline-NH2† , 2001 .

[9]  Robin M. Hochstrasser.  Multidimensional ultrafast spectroscopy , 2007, Proceedings of the National Academy of Sciences.

[10]  S. Mukamel,et al.  Two-dimensional vibrational optical probes for peptide fast folding investigation , 2006, Proceedings of the National Academy of Sciences.

[11]  N. Demirdöven,et al.  Obtaining absorptive line shapes in two-dimensional infrared vibrational correlation spectra. , 2003, Physical review letters.

[12]  O. Golonzka,et al.  Coupling and orientation between anharmonic vibrations characterized with two-dimensional infrared vibrational echo spectroscopy , 2001 .

[13]  Complete polarization state control of ultrafast laser pulses with a single linear spatial light modulator. , 2007, Optics express.

[14]  Joshua C Vaughan,et al.  Coherently controlled ultrafast four-wave mixing spectroscopy. , 2007, The journal of physical chemistry. A.

[15]  Peifang Tian,et al.  Femtosecond Phase-Coherent Two-Dimensional Spectroscopy , 2003, Science.

[16]  Matthew A. Montgomery,et al.  Facile collection of two-dimensional electronic spectra using femtosecond pulse-shaping Technology. , 2007, Optics express.