title: Pulse shaping based two-dimensional electronic spectroscopy in a background free geometry.
abstract: We demonstrate a "drop-in" modification of the pulse-shaped pump-probe geometry two-dimensional Fourier transform spectrometer that significantly improves its performance by making the measurement background-free. The modification uses a hybrid diffractive optic/pulse-shaping approach that combines the advantages of background-free detection with the precise timing and phase-cycling capabilities enabled by pulse-shaping. In addition, we present a simple new method for accurate phasing of optically heterodyned two-dimensional spectra. We demonstrate the high quality of data obtainable with this approach by reporting two-dimensional Fourier transform electronic spectra of chlorophyll a in glycerol/water at 77 K.
authors: Franklin D
authors: FD
authors: Fuller
authors: Daniel E
authors: DE
authors: Wilcox
authors: Jennifer P
authors: JP
authors: Ogilvie
mesh_terms: D000465:Algorithms; D002734:Chlorophyll / Q000032:analysis* / Q000737:chemistry; D000077194:Chlorophyll A; D005990:Glycerol / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D017550:Spectroscopy, Fourier Transform Infrared / Q000295:instrumentation* / Q000379:methods; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water; D002734:Chlorophyll; D005990:Glycerol; D000077194:Chlorophyll A