Phase-Modulated Rapid-Scanning Fluorescence-Detected Two-Dimensional Electronic Spectroscopy
arXiv:2105.13319 · doi:10.1063/5.0057649
Abstract
We present a rapid-scanning approach to fluorescence-detected two-dimensional electronic spectroscopy that combines acousto-optic phase-modulation with digital lock-in detection. The approach shifts the signal detection window to suppress 1/f laser noise and enables interferometric tracking of the time delays to allow for correction of spectral phase distortions and accurate phasing of the data. This use of digital lock-in detection enables acquisition of linear and nonlinear signals of interest in a single measurement. We demonstrate the method on a laser dye, measuring the linear fluorescence excitation spectrum, as well as rephasing, non-rephasing and absorptive fluorescence-detected two-dimensional electronic spectra.
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Cited by in corpus (8)
- Identifying incoherent mixing effects in the coherent two-dimensional photocurrent excitation spectra of semiconductors
- Fluorescence-detected two-dimensional electronic spectroscopy of a single molecule
- A flexible and scalable, fully software-based lock-in amplifier for nonlinear spectroscopy
- High-resolution two-dimensional electronic spectroscopy reveals homogeneous line profiles in isolated nanoparticles
- Cogwheel phase cycling in population-detected optical coherent multidimensional spectroscopy
- Overcoming experimental obstacles in two-dimensional spectroscopy of a single molecule
- Two-dimensional fluorescence spectroscopy with quantum entangled photons and time- and frequency-resolved two-photon coincidence detection
- Low-dispersive phase-modulated rapid scanning interferometry